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General Category => Technical Support - General => Topic started by: Sidney on 00:51, 07 June 17

Title: Odd tape issue on Cpc464
Post by: Sidney on 00:51, 07 June 17
Hi there,
I have owned my Schneider Cpc464 for a few weeks and after years of gaming on everything else I am really enjoying catching up on the Cpc fun that I had thus far denied myself and now I can see what all the fuss is about! My other machines have barely had a look in (apart from my c16- but that goes without saying really!!)  I don't have an Sd card solution yet and to be fair I have not found one that seems as simple as the ones I have seen for the Speccy and C64 but that is another issue entirely.


I have been playing my Cpc games the 80's way and that means from cassette (the ultimate retro experience!) and have been hitting eBay for all sorts of game bundles and Im happy to say that by and large the machine is very reliable loading from tape, overall I find the Acorn Electron the most reliable, then the C16 then the Speccy. I do find that the Amstrad compares favourably with these which is great for a machine that is 33 years old.


I recently decided that I wanted to play Rambo and Kung Fu Master which are games that I enjoyed playing on my friends Amstrad- and as luck would have it I found a loose copy of those two games from Ocean's 'They Sold a Million 3' for a very good price- and so I loaded it up (or at least I tried too) Kung Fu Master loaded first time, I had a quick go then I tried Rambo- the loading screen started to appear- then the tape made a horrid slow down noise and then stopped entirely and I was dumped back on the start up screen, so dutifully I rewound the tape, fast forwarded the tape, tightened up the tape........ still the same, I even wound it through manually.......still the same, I tried to put the tape in another cassette body........same result.


Worse still..... Kung Fu Master stopped working too.....aaarrgghh!!!! I tried copying tape to tape on two spare cassette players but the games failed mid load in each case! In the end I admitted defeat and ordered the full compilation set from eBay- even though I'm no Ghostbusters fan and I'm not interested  at all in Fighter Pilot.


Guess what.....both tapes did exactly the same thing! I am utterly baffled by this- my Cpc has been great with all of my other games but it absolutely will not load theses ones!! My question is why would it not like two totally separate versions of the same game? Was there a faulty batch of this compilation out on the market back in the 80's and I've been unlucky enough to experience it twice? As I say all my other games are fine, from short loaders to games that take ages my Cpc will load them all, maybe old copies of this compilation are prone to deteriorate over time, whatever it is I am stumped and puzzled and have never experienced anything like it in all my gaming years. Is there anyone out there who can throw any light on this before I am driven slowly mad, it has become a crusade for me now to get a working copy of Kung Fu Master and Rambo!!!!

help!!! :o
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 01:02, 07 June 17
For testing purposes, might be worth playing this CDT file into a tape recorder and recording it and then playing it back in your 464.

http://www.cpc-power.com/index.php?page=detail&onglet=dumps&num=3638

Edit: Click on the tape icon and download each side of the Rambo/Kung Fu Master tape. ;)
Title: Re: Odd tape issue on Cpc464
Post by: 00WReX on 09:50, 07 June 17
Just going to throw this out there, even though you have probably already tried it.

I'm assuming you tried loading the game from both sides of the cassette.

I believe in some cases they even used the equivalent of a 'Speed Write 1' (2000 baud) on one side and the normal baud rate on the other (1000 baud).
I'm sure I have a couple like that.
I'm sure the ones written with a 'Speed Write' would be a lot more prone to issues after this many years.

Having said that, the vast majority mostly just have a copy of the game on each side of the cassette, at the normal rate to avoid issues even back then.

Cheers,
Shane
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 10:01, 07 June 17
Quote from: 00WReX on 09:50, 07 June 17
Just going to throw this out there, even though you have probably already tried it.

I'm assuming you tried loading the game from both sides of the cassette.

I believe in some cases they even used the equivalent of a 'Speed Write 1' (2000 baud) on one side and the normal baud rate on the other (1000 baud).
I'm sure I have a couple like that.
I'm sure the ones written with a 'Speed Write' would be a lot more prone to issues after this many years.

Having said that, the vast majority mostly just have a copy of the game on each side of the cassette, at the normal rate to avoid issues even back then.

Cheers,
Shane

In the cases of the They Sold A Million compilations, I don't think that's going to be the case as They were mostly speedlock protection system (except Jet Set Willy on TSAM 1, and Ghostbusters on TSAM 3 which were basic and spectrum loaders respectively).
Title: Re: Odd tape issue on Cpc464
Post by: 00WReX on 10:27, 07 June 17
When I was writing the previous message, I could not think of the name of the loader/copy protection name (Speedlock).
Thanks for clarifying that  ;)

That's why I used 'equivalent of a 'Speed Write 1' (2000 baud)', because I believe the various 'Speedlock' methods had varying baud rates, that were all higher than the standard loader speed of 1000 baud.

Anyway, my main thing was to simply try the other side of the cassette if you have not already  :D .

Cheers,
Shane
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 10:59, 07 June 17
Quote from: 00WReX on 10:27, 07 June 17
Anyway, my main thing was to simply try the other side of the cassette if you have not already  :D .

He did... Rambo is on one side, and Kung Fu Master is on the other side of that compilation (with Ghostbusters on one side and Fighter Pilot on the other side of the second tape).  ;)

I'm guessing the tapes are just worn or stretched from time. These things were manufactured in 86-87, and depending on how they were duplicated (in terms of quality, and there were some awful quality tapes used by some distributors, I'm looking at you Ablex!), some will hold up better than others.

That's why I sent him the link to the CDT, so he could make one himself. Cassettes are starting to come back into fashion again, a lot of underground bands are starting to record EP's to them, so shouldn't be too hard to source some blanks now.  :)
Title: Re: Odd tape issue on Cpc464
Post by: 00WReX on 11:34, 07 June 17
aahh, bugger...
I did not realise that.
I recently got a Superheroes box set, and it actually came with 4 individual cassettes.
I tested them all and one of them did not work on one side, but did the other.

Anyway, scrap that thought then  ::)

Cheers,
Shane




Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 22:54, 07 June 17
Thankyou both for your advice 00wrex- yes unfortunately it's as Shaun says -one game on side one and one on side two. But as you say it was worth a mention.


Shaun- Once again you are fantastic with the advice you provide, as far is I'm concerned you are the number one go to Amstrad Cpc guy in all of Eire and I mean that most sincerely! Regarding ' They Sold a Million 3' that wouldn't  happen to be an Ablex tape by any chance?? Which software house used Ablex mostly? (so I can give their games a wide birth!)
I did think that possibly the tape may have been over stretched and as you rightly say we are dealing with software that is over 30 years old so it will be a hit and miss process. In actuality I'm amazed that most of my games are top notch in the loading department and think that overall and all things considered -cassette media has held up a lot better than 3.5 inch floppies over time.
Being a bit of a techno dunce, how easy is it to copy data from Pc to bog standard tape decks and what lead would I use, also would that lead just go into the earphone socket of a standard laptop or are more gizmo's required? If so I plan on using my super reliable cassette deck that I use with trusty Electron.
Once again many thanks, your help is as always very much appreciated.
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 01:49, 08 June 17
Many thanks for the compliment but It'll probably take a lot to knock CraigsBar off that throne! He knows waaaaaaay more than me. I just happen to spend most of my Amstrad days as a tape guy and I remember a lot of horror stories.


Pretty much everyone used Ablex to be honest, even Amstrad Action who've had many a covertape flung back at em! 😂😂


You don't need to be too tech savvy. Just need a few tools.


1) a playback program like PlayTZX or WinTZX. Designed with Speccy tape files but I think they can handle CPC too. Try a few different programs as your mileage may vary.


2) a tape recorder! Preferably one with a line in / mic socket.


3) a cable with a 3.5mm jack for your PC to whatever your tape recorder has.


4) Patience! You may need to play around with the volume a bit but you'll get there!
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 18:41, 08 June 17
All the old tools made for making CDT are just either crap, or buggy.


The only tool to use is csw2cdt tool suite by cngsoft. It supports all the speedlocks (samp2cdt just fucks them all !!)


And the reversion tools are not doing the job correctly either.


Basically, most samp2cdt dumps just do not work back on real hardware, it doesn't inject in the CDT the right timings (it calculates them in the wrongest possible way).


I'm currrently in the process of redumping as many tapes as possible, because most CDT dumps are just shit :(


CSW2CDT is preserving the right timings, and allows to make clean and perfectly working CDT files, that can be also perfectly reverted.


CSW2CDT is supporting also many other new custom protection schemes like Operasoft, Hexagon tape, UNIlode, zydroload, spectrum, spectrum variant 1 & 2, and special speedlocks (like the ones used on world games and Nigel Mansell from Martech).


All the oldish tools should be removed and banned one end for all !!!
Title: Re: Odd tape issue on Cpc464
Post by: arnoldemu on 19:08, 08 June 17
True.

Now that tape and disc loaders have been analyzed a lot more and understood and the operation of the cpc is more well understood it is true it now makes many emulator file formats inaccurate and not suitable.

At the time, these formats were considered ok, and they did the job of getting software out there and to help fuel the interest in the cpc and in some way to preserve the cpc. Looking back it would have been great to have perfect tools in the beginning but it wasn't so.

Sorry you have to re-dump a lot - but I am pleased the right person is doing it with the right tools :)

cdt/tzx file format is also horribly complicated.

dsk is not suitable for copy protection as we all know.

snapshot is not suitable either because it's just not accurate enough.


Title: Re: Odd tape issue on Cpc464
Post by: arnoldemu on 19:12, 08 June 17
Quote from: dlfrsilver on 18:41, 08 June 17
All the oldish tools should be removed and banned one end for all !!!
I am happy to remove them from cpctech. :)

edit: removed link to samp2cdt :)
Title: Re: Odd tape issue on Cpc464
Post by: pmeier on 20:29, 08 June 17
Quote from: arnoldemu on 19:08, 08 June 17dsk is not suitable for copy protection as we all know.

I did not know. Up to now I'm very happy with the originals provided by cpc-power. I recently transferred some disks to my real cpc.
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 07:35, 09 June 17
Quote from: arnoldemu on 19:12, 08 June 17
I am happy to remove them from cpctech. :)

edit: removed link to samp2cdt :)


Thanks a lot !!!


Now people will use the right tools to make working CDTs :)
Title: Re: Odd tape issue on Cpc464
Post by: arnoldemu on 09:06, 09 June 17
Quote from: pmeier on 20:29, 08 June 17
I did not know. Up to now I'm very happy with the originals provided by cpc-power. I recently transferred some disks to my real cpc.
Dsk is a good format for general use, for cracked software and it's fine for new releases that are not copy-protected.

For archiving of copy protected discs it is not suitable. It is missing information and doesn't describe the exact disc structure down to the individual flux transitions. In this case something like ct-raw is the preferred option, with the right hardware ct-raw can go back to disc and you can't tell the difference. With dsk it is not possible sometimes.

Continue to use dsk, but not for accurate preserving of disks.

Title: Re: Odd tape issue on Cpc464
Post by: pmeier on 14:22, 09 June 17
Quote from: arnoldemu on 09:06, 09 June 17For archiving of copy protected discs it is not suitable.

AFAIK it supports a lot of different protections. Look:
http://www.cpc-power.com/SectorView.php?fiche=148&slot=10&rang=0 (http://www.cpc-power.com/SectorView.php?fiche=148&slot=10&rang=0) -> Map

I transferred this image back to my CPC and well, the disk loading procedure makes the same characteristic noise I had in memory  ;D

The best copy protection I met was Platoon. Couldn't copy it with Discology 5.0. But, as it is a time time consuming task I did not try out to transfer it. I guess it was one of the protections that the CPC could read, but not write, because of the physical restrictions of the drive. But cpc-power preserved it anyway.

I also noticed that emulators don't run Discology etc. They just crash. Obviously deep reading is not a primary feature.
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 17:25, 09 June 17
Quote from: pmeier on 14:22, 09 June 17
AFAIK it supports a lot of different protections. Look:
http://www.cpc-power.com/SectorView.php?fiche=148&slot=10&rang=0 (http://www.cpc-power.com/SectorView.php?fiche=148&slot=10&rang=0) -> Map

I transferred this image back to my CPC and well, the disk loading procedure makes the same characteristic noise I had in memory  ;D

The best copy protection I met was Platoon. Couldn't copy it with Discology 5.0. But, as it is a time time consuming task I did not try out to transfer it. I guess it was one of the protections that the CPC could read, but not write, because of the physical restrictions of the drive. But cpc-power preserved it anyway.

I also noticed that emulators don't run Discology etc. They just crash. Obviously deep reading is not a primary feature.


This game doesn't really have a copy protection. It can indeed be written back :)


Platoon use a weak sector protection. that's why discology just can't copy it :)
Title: Re: Odd tape issue on Cpc464
Post by: pmeier on 20:31, 09 June 17
Quote from: dlfrsilver on 17:25, 09 June 17This game doesn't really have a copy protection. It can indeed be written back :)

But the conclusion is that DSK supports copy protections. And that was the question.  :P
Title: Re: Odd tape issue on Cpc464
Post by: Cholo on 23:10, 09 June 17
Anwering the original post:


The "wobbly" sound you hear usually mean that you tape has a genuine "dent" on the tape usually making the game(s) unplayable. It can be more or less severe.


Motor: If you are getting these sound wobbles randomly on random tapes then its probably your motor giving up. Do note that there is a small number of giant tapes out there that could make a old motor wobbly, but They Sold a Milllion 3 is not big. Infact its incredible small tapes & as far as i know fairly well made as well (never had troubles with my "million" tapes). Was a full price compilation too it would have looked bad if they wasnt working. Other later compilations like the quite common "10 games vol x" was horrible bad quality and clearly made in a rush by someone who either didnt care or had no clue .. quite noticable that the games just been thrown down mindlessly without any concern for timings, speeds or loading schemes. Thus usually at least 1 or 2 of the games are completely unplayable.


Tape belt: if you are getting the wobble continually then its probably the rubber belt inside you cassette player that is going "hard" or even rotting away. Luckily a replacement belt is still being sold on ebay for like a buck or 2.


Azimuth: Could also be that your tape head Azimuth thingymagic is a bit off & needs adjusting. Probably a good idea to get a proper kit at some point and not mindlessly just "wing it" like i lazily do.


Error B: Now the games on Sold in a Milllion is protected and sadly not using the amstrads brilliant "block" loading system thus if a error happen the game crashes. However had it used the native "block" system it would also have reported us an Error message, where the "Error B" is the minor one that can sometimes simply be fixed by rewinding the tape and retrying the block load. Fairly often also fixed by adjusting Azimuth.


Error A: Auch, never recovered from one. Genuine dent on the tape either physically or electronically in some way.


Donno the chance of buying used games with errors on them, but i always have it in mind when i go to like ebay. However cant really say ive had too much troubles with cassette tape, as in general much of the games are usually "new old" stock. But it does happen from time to time and it no way as bad as the 3" floppy games that seem to have a very high chance of having errors on them now (not counting protection stuff of cause).


Always handled my cassette games with care. A bit overprotective perhaps but they was expensive and unlike music or lp you cant continue to play em if there is a dent or error. Some of my friends really acted like monkeys. I dont think ive ever turned on or off my 464 when the play-head was still pressed on the tape. Didnt lend that guy tapes after seeing that happen lol. Heck i even dont start or stop a tape if its over data, aka i always wait untill its "between blocks" or simply wait untill it reaches the end. Never used the pause button and when pressing stop/eject i always pressed it geeeently  ;)
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 12:14, 11 June 17
Hi Cholo,


Did you tried csw2cdt on your tapes ? do you have some of them that you could test with it ? :)
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 12:22, 11 June 17
Quote from: pmeier on 20:31, 09 June 17
But the conclusion is that DSK supports copy protections. And that was the question.  :P


Some, and in quite a number of case fake the protection, because the dsk format is not able to store them as they are really written on disk.


Bear in mind that most protected CPC disk were written in track mode, while dsk format only deal with sector mode.


The storage of speedlock and hexagon tracks for example are simulated in dsk files. On original disks, those are written as full tracks.


the dsk format stored them as huge sectors, when in reality they are one track with a badly declared 512 bytes sectors, with 5278 bytes of gap data.


that's just an example, there are many others.
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 17:44, 11 June 17
Quote from: Cholo on 23:10, 09 June 17
Anwering the original post:


The "wobbly" sound you hear usually mean that you tape has a genuine "dent" on the tape usually making the game(s) unplayable. It can be more or less severe.


Motor: If you are getting these sound wobbles randomly on random tapes then its probably your motor giving up. Do note that there is a small number of giant tapes out there that could make a old motor wobbly, but They Sold a Milllion 3 is not big. Infact its incredible small tapes & as far as i know fairly well made as well (never had troubles with my "million" tapes). Was a full price compilation too it would have looked bad if they wasnt working. Other later compilations like the quite common "10 games vol x" was horrible bad quality and clearly made in a rush by someone who either didnt care or had no clue .. quite noticable that the games just been thrown down mindlessly without any concern for timings, speeds or loading schemes. Thus usually at least 1 or 2 of the games are completely unplayable.


Tape belt: if you are getting the wobble continually then its probably the rubber belt inside you cassette player that is going "hard" or even rotting away. Luckily a replacement belt is still being sold on ebay for like a buck or 2.


Azimuth: Could also be that your tape head Azimuth thingymagic is a bit off & needs adjusting. Probably a good idea to get a proper kit at some point and not mindlessly just "wing it" like i lazily do.


Error B: Now the games on Sold in a Milllion is protected and sadly not using the amstrads brilliant "block" loading system thus if a error happen the game crashes. However had it used the native "block" system it would also have reported us an Error message, where the "Error B" is the minor one that can sometimes simply be fixed by rewinding the tape and retrying the block load. Fairly often also fixed by adjusting Azimuth.


Error A: Auch, never recovered from one. Genuine dent on the tape either physically or electronically in some way.


Donno the chance of buying used games with errors on them, but i always have it in mind when i go to like ebay. However cant really say ive had too much troubles with cassette tape, as in general much of the games are usually "new old" stock. But it does happen from time to time and it no way as bad as the 3" floppy games that seem to have a very high chance of having errors on them now (not counting protection stuff of cause).


Always handled my cassette games with care. A bit overprotective perhaps but they was expensive and unlike music or lp you cant continue to play em if there is a dent or error. Some of my friends really acted like monkeys. I dont think ive ever turned on or off my 464 when the play-head was still pressed on the tape. Didnt lend that guy tapes after seeing that happen lol. Heck i even dont start or stop a tape if its over data, aka i always wait untill its "between blocks" or simply wait untill it reaches the end. Never used the pause button and when pressing stop/eject i always pressed it geeeently  ;)








Thankyou Cholo for your indepth and very interesting post, there is certainly some food for thought there. The thought that possibly the drive belt was hardening/rotting did spring to mind, likewise the azimuth alignment and given my experiences with other 8bit tape systems I certainly wouldn't rule it out but I have to say that I have many more tapes that load perfectly so I am loathe to tinker too much at the moment. They are things to consider though so many thanks.


If the tape deck requires new belts is it as easy to do as it is on the Spectrum +2? If the motor were to die how easy is a repair/replacement on the 464? Is the azimuth tape head easily adjusted on the 464? On the +2 it was simply a matter of putting in an audio cassette and adjusting the head until the audio is as clear as it can be then data loading generally is fine, can that be done with the Cpc.
Thanks for all the help chaps!
Title: Re: Odd tape issue on Cpc464
Post by: Cholo on 18:01, 13 June 17
Quote from: Sidney on 17:44, 11 June 17

Thankyou Cholo for your indepth and very interesting post, there is certainly some food for thought there. The thought that possibly the drive belt was hardening/rotting did spring to mind, likewise the azimuth alignment and given my experiences with other 8bit tape systems I certainly wouldn't rule it out but I have to say that I have many more tapes that load perfectly so I am loathe to tinker too much at the moment. They are things to consider though so many thanks.


If the tape deck requires new belts is it as easy to do as it is on the Spectrum +2? If the motor were to die how easy is a repair/replacement on the 464? Is the azimuth tape head easily adjusted on the 464? On the +2 it was simply a matter of putting in an audio cassette and adjusting the head until the audio is as clear as it can be then data loading generally is fine, can that be done with the Cpc.
Thanks for all the help chaps!


Ah yes, if other tapes works fully then i wouldnt start tinkering with anything like the motor or azimuth as both are clearly working just fine/correctly then. One of the amazing things about the amstrad 464 is that the tape deck has always been really reliable. Kinda crazy to think ive never really had to hardcore tinker with the couple of 464s i have. That is good because the tape mechanism is quite complex. Must admit i know little about the Spectrum +2 motor either but i assume they are quite the same-ish.


Azimuth: again if all your other tapes work there is no reason tinkering with the setting. Never had a tape myself, but in the few rare times ive "desperately" needed to load some personal data, id just use a small screwdriver in the hole and do a tiny adjustment either left or right (and remember the original setting as good as possible) untill id get a sharper tone. Never had a official allignment tape but i see em often on ebay and the like.


Here is a video of Novabug doing a smart change of the tape ribbon (at about 16 mins in):
https://www.youtube.com/watch?v=tO9NkxkeFQo


This may help if you need to go deeper (or scare you off):
https://www.youtube.com/watch?v=BQtfIwlS0aE


Technically there are 3 ribbons, this may help if you need to know more than just the usual big one:
http://www.cpcwiki.eu/index.php/Changing_cassette_deck_belts


I think Dataserve still does repairs on amstrads:
http://www.dataserve-retro.co.uk/
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 00:03, 18 June 17
Many thanks once again to you Cholo, these videos are very helpful indeed and I will be making use of them, I have decided it can't hurt to change out the old belts as I'm sure they have probably been in the Cpc since day one so I have ordered a new set from eBay and I hope I don't make a pigs ear of the job!!
Thank you for your very helpful advice since I joined the forum, much appreciated. :)
I take it you are the very same Cholo who's YouTube channel I subscribed to a while back? If so I am enjoying it, keep up the fine work!
Title: Re: Odd tape issue on Cpc464
Post by: Cholo on 17:22, 21 June 17
No problemo  ;)  Gotta help out when you can, i think. Espcially as know-how about the old amstrad seem to quickly reach "ancient cryptic" information on the brink of being lost. Its like showing kids a rotary phone or a typewriter .. and they know what it is and what its used for .. but not how to use it.


Oh and im indeed CholoCPC on youtube  ;D
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 17:37, 27 June 17
Ok, so I have the tape belt but I'm in a quandary because 95% of my games work fine without issue but the odd few have that squelchy tape sound issue which leads to load errors. My thinking leads to say- surely if the belt was shot it would do this across the board on all tapes and not some, yet all around the net it says that noise is indeed a belt issue? ??? ?!!! I don't want to start replacing the belt only to make matters worse, I also read that some soldering was required which I can't do owing to having no soldering iron and no confidence in my ability to use it if I had!! When I watched the Novabug video he didn't do any soldering just unscrewing a few screws and belt replacing.
What are other peoples experiences/issues/advice regarding cassette belt fitting on the Cpc? Consider also that mine is the Schneider variation and not an actual Amstrad. Plus I've noticed that issues tend to arise more with US Gold and to a lesser extent Ocean games.  Thanks again guys!
Title: Re: Odd tape issue on Cpc464
Post by: Bryce on 08:29, 28 June 17
If 95% of your games work, then it's the 5% of tapes that are dodgy and the belt is fine. You can try to loosen up the "squelchy" tapes by fast-forwarding and rewinding the entire tape. If that doesn't work, you can try loosening the small screws in the tape case if the tapes are screwed and not welded closed.

Bryce.
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 13:19, 28 June 17
Quote from: Sidney on 17:37, 27 June 17
Ok, so I have the tape belt but I'm in a quandary because 95% of my games work fine without issue but the odd few have that squelchy tape sound issue which leads to load errors. My thinking leads to say- surely if the belt was shot it would do this across the board on all tapes and not some, yet all around the net it says that noise is indeed a belt issue? ??? ?!!! I don't want to start replacing the belt only to make matters worse, I also read that some soldering was required which I can't do owing to having no soldering iron and no confidence in my ability to use it if I had!! When I watched the Novabug video he didn't do any soldering just unscrewing a few screws and belt replacing.
What are other peoples experiences/issues/advice regarding cassette belt fitting on the Cpc? Consider also that mine is the Schneider variation and not an actual Amstrad. Plus I've noticed that issues tend to arise more with US Gold and to a lesser extent Ocean games.  Thanks again guys!


Please list the games giving you troubles.
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 17:39, 28 June 17
Cheers Bryce I think you are right on that. What seems suspicious to me s that I am having problems with the same 2 games, be they compilation or single release versions of the same game, in this case both the original release and the They Sold a Million version of Kung Fu Master. Rambo causes problems with both the They Sold a Million and Hit Squad versions too (although the latter seems ok after a couple of attempts on the Hit Squad version).


dlfrsilver- As above the prime sources of my problems are Kung Fu Master (of which I have tried 3 versions) Rambo another 3 versions. Both tapes on the US Gold- Gold Collection3. Everything else I have thrown at it is absolutely fine. Which I suppose isn't bad for a 33 year old machine if I'm being absolutely fair.


Incidentally I did the belt swap and it was very easy to do but having got inside the machine and taken it out I couldn't tell any difference in size between either belt!! I'm guessing that wasn't the problem after all! I will be trying the car cassette adaptor thing hopefully to load games via mp3 player and possibly to even use my trusty Ferguson tape deck that works so well with my Electron. In the meantime I'm off to play my ultra reliable cassette version of Scooby Doo!!
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 01:27, 29 June 17
Quote from: Sidney on 17:39, 28 June 17
Cheers Bryce I think you are right on that. What seems suspicious to me s that I am having problems with the same 2 games, be they compilation or single release versions of the same game, in this case both the original release and the They Sold a Million version of Kung Fu Master. Rambo causes problems with both the They Sold a Million and Hit Squad versions too (although the latter seems ok after a couple of attempts on the Hit Squad version).


dlfrsilver- As above the prime sources of my problems are Kung Fu Master (of which I have tried 3 versions) Rambo another 3 versions. Both tapes on the US Gold- Gold Collection3. Everything else I have thrown at it is absolutely fine. Which I suppose isn't bad for a 33 year old machine if I'm being absolutely fair.


Incidentally I did the belt swap and it was very easy to do but having got inside the machine and taken it out I couldn't tell any difference in size between either belt!! I'm guessing that wasn't the problem after all! I will be trying the car cassette adaptor thing hopefully to load games via mp3 player and possibly to even use my trusty Ferguson tape deck that works so well with my Electron. In the meantime I'm off to play my ultra reliable cassette version of Scooby Doo!!

They Sold A Million 3. Rambo was an Ocean release, so it would be unlikely to appear on a US Gold compilation.  :)

The car adapter is a good idea. I'm currently using one to load tzx files to a Spectrum. You have to prick about the volume, but once you've set it properly, it's fine.
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 02:04, 29 June 17
Hi Shaun, sorry mate I wasn't very clear on that! I meant the problem tapes are--- Kung Fu Master-They Sold a Million 3 (not the 1st one) version, and the original release version from Us Gold. Also Rambo from the same compilation and it's Hit Squad release too. The only other tapes to give me problems were both cassettes from the Us Gold compilation-Gold Collection 3 which is also a pain in the arse to load. All other tapes are fine.


Shaun- Do you think that I will (subject to volume tinkering) have similar success loading Amstrad games through the cassette adapter as you have on your Spectrum? I'm hoping to load games through my phone or pc and if possible attach my super reliable Ferguson tape deck to it for those more stubborn tapes! I'm also guessing that the cassette adapter cable is stereo, will this affect loading as I always thought old computers preferred a mono signal.
Once again thankyou for your helpful advice.
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 13:40, 29 June 17
Quote from: Sidney on 17:39, 28 June 17
Cheers Bryce I think you are right on that. What seems suspicious to me s that I am having problems with the same 2 games, be they compilation or single release versions of the same game, in this case both the original release and the They Sold a Million version of Kung Fu Master. Rambo causes problems with both the They Sold a Million and Hit Squad versions too (although the latter seems ok after a couple of attempts on the Hit Squad version).


the problem is the state of the tape band. The speedlock protections depending on the versions, use micro-blocs. On a tape going bad, just guess what happens....


any bad bit will render the game inoperant.


Quotedlfrsilver- As above the prime sources of my problems are Kung Fu Master (of which I have tried 3 versions) Rambo another 3 versions. Both tapes on the US Gold- Gold Collection3. Everything else I have thrown at it is absolutely fine. Which I suppose isn't bad for a 33 year old machine if I'm being absolutely fair.


ok, if i send you perfectly working WAV files of those game, would you test them with a car adapter inserted in your 464 ?


QuoteIncidentally I did the belt swap and it was very easy to do but having got inside the machine and taken it out I couldn't tell any difference in size between either belt!! I'm guessing that wasn't the problem after all! I will be trying the car cassette adaptor thing hopefully to load games via mp3 player and possibly to even use my trusty Ferguson tape deck that works so well with my Electron. In the meantime I'm off to play my ultra reliable cassette version of Scooby Doo!!


In fact, even without a belt but with a car adapter tape, any game should load from a WAV file loaded from a PC.


I don't recommand the MP3 format, because it's a degressive format, where you have a loss of information. I found it years ago unreliable at best.
Title: Re: Odd tape issue on Cpc464
Post by: jpx13 on 19:11, 29 June 17
Hello,

Another possibility, if you own an android smartphone (or like me own an old android phone, now useless ;D ), you can use a program named "Tap Dancer" that will nicely play the tape files (cdt). You can use a car cassette adapter, or if you like soldering and are not affraid of opening your CPC just wire a 3.5mm socket and use this to connect the smartphone. I wired my socket on the Read/Write head solderings (on the cassette player PCB side), because any other places suggested would not work with my CPC.

It is an easy mod, and really usefull ! You don't even need to press play to load a game, only to start playing on the smarphone after typing run" and the game should load. The only drawback is when in some game you need to pause the smartphone manualy because there is no control on the play/pause from the CPC ;D . But with a bit of practice, it can be easily managed.

From the numerous games I tried, only a few wouldn't load, and perhaps because of poor quality cassette dump.

Cheers,

JP
Title: Re: Odd tape issue on Cpc464
Post by: buzby on 23:08, 29 June 17
Any games that don't load for me I adjust the azimuth, I have done this with three different cassettes of Kung fu master to get them load and they worked in the end


Sent from my iPhone using Tapatalk
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 23:26, 29 June 17
@dlfrsilver (http://www.cpcwiki.eu/forum/index.php?action=profile;u=137)- I decided to play the audio of the offending tapes through my Ferguson tape deck and they played all the way way through with no drop outs in sound and no slow down on the tape so I'm not sure the tapes are at fault.
I would be more than happy to try your wav file experiment.



@jpx13 (http://www.cpcwiki.eu/forum/index.php?action=profile;u=2171)- That is something I have considered but I am reluctant to do something that would render the tape deck inoperable (if indeed it does render the deck inoperable!)


@buzby (http://www.cpcwiki.eu/forum/index.php?action=profile;u=488)- The azimuth seemed the most obvious to me and that is my first port of call in most cases but bizarrely when I peer through the hole (aided by a torch) where the alignment screw should be all I can see is a metal surface! I'm wondering whether maybe Kung Fu Master is a more temperamental tape what with your problems with it and mine!




I have a German Schneider Cpc464 and not an Amstrad Cpc 464 so I'm not sure if the German system has a different mechanism from it's UK counterpart. Can anyone shed any light on this? Does anyone else own a Schneider to confirm my theory?


Once again-Thanks for all your input guys. :)

Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 01:43, 30 June 17
Quote from: Sidney on 02:04, 29 June 17
Shaun- Do you think that I will (subject to volume tinkering) have similar success loading Amstrad games through the cassette adapter as you have on your Spectrum? I'm hoping to load games through my phone or pc and if possible attach my super reliable Ferguson tape deck to it for those more stubborn tapes! I'm also guessing that the cassette adapter cable is stereo, will this affect loading as I always thought old computers preferred a mono signal.
Once again thankyou for your helpful advice.

I think it's one of those things where your mileage may vary to be honest. With the Spectrum, I've had 100% success rate using WinTZX and converting it to mp3 and heaving it onto an iPod classic and playing it back. I can't see why it wouldn't work for a CPC.

In terms of the mono / stereo thing. It's been weird. Sometimes the games load when the adapter is fully plugged in, and then other times, I need to pull the connection from the iPod out a little bit to cut off one of the channels so that the signal is sent in mono. For the Speccy, sometimes the SD reader doesn't load the games, so I use the iPod for the games that have problems and so far so good. Means a few minutes more of loading time (it's mainly on older titles that don't require a multi load), but it was definitely worth the experience playing around replicating old loading techniques with newer hardware.
Title: Re: Odd tape issue on Cpc464
Post by: jpx13 on 06:59, 30 June 17
Hello,


With my CPC, the input mod wired where the R/W head is soldered doesn't affect in any way the tape deck.


I can load games with tap dancer by the new input socket, and I can load regular tapes with the cassette deck either.


As I own a Schneider 464, I will have a look at the azimuth adjust hole later today and report what I see. From memory, there was an adjusting screw, but as the azimuth was fine, I didn't use it. Have you tried the little azimuth test program to check yours is correct?

Also, have you looked inside with "play" pressed? If not, there is no screw in the hole.


JP
Title: Re: Odd tape issue on Cpc464
Post by: dlfrsilver on 07:32, 30 June 17
Quote from: Shaun M. Neary on 01:43, 30 June 17
I think it's one of those things where your mileage may vary to be honest. With the Spectrum, I've had 100% success rate using WinTZX and converting it to mp3 and heaving it onto an iPod classic and playing it back. I can't see why it wouldn't work for a CPC.

In terms of the mono / stereo thing. It's been weird. Sometimes the games load when the adapter is fully plugged in, and then other times, I need to pull the connection from the iPod out a little bit to cut off one of the channels so that the signal is sent in mono. For the Speccy, sometimes the SD reader doesn't load the games, so I use the iPod for the games that have problems and so far so good. Means a few minutes more of loading time (it's mainly on older titles that don't require a multi load), but it was definitely worth the experience playing around replicating old loading techniques with newer hardware.


the old tools like Wintzx are spectrum only. And more or less those old programs are known to be buggy (like Tape2wav, tzx2wav and so on).


That is why csw2cdt has been made. when you revert a tape, it works every time, and the WAV resulting is only 400kb once crunched with 7zip.
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 13:46, 30 June 17
Quote from: dlfrsilver on 07:32, 30 June 17

the old tools like Wintzx are spectrum only. And more or less those old programs are known to be buggy (like Tape2wav, tzx2wav and so on).


That is why csw2cdt has been made. when you revert a tape, it works every time, and the WAV resulting is only 400kb once crunched with 7zip.

I'm not entirely sure that Apple's devices support wav though, but I'm open to correction on this.
Title: Re: Odd tape issue on Cpc464
Post by: Bryce on 14:09, 30 June 17
iPods definitely support wav.

Bryce.
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 23:51, 01 July 17
Once again thanks to you all for all the help and advice, the level of help here has been totally fantastic, you are a great bunch.
Today the car cassette adaptor arrived so I took the plunge and downloaded Tap Dancer and a whole heap of files and Tap Dancer duly converted them into audio files, I hooked the cassette cable to my Sony Xperia- followed the instructions and............Major success!! Tons of games all loaded beautifully including.......Kung Fu Master!! I have a seemingly irrational love for that game since I played the arcade machine in France, I have it for every system I own but I have the most love for the NES, C64, Atari 2600 and Amstrad versions, now I can actually play it on the Cpc and a whole lot more besides!! So a big thank you to you all for everything! :)
Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 22:53, 02 July 17
You've a world of rediscovery ahead of you. Enjoy 😃
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 00:53, 03 July 17
Thanks Shaun, I'm looking forward to it! :)
Title: Re: Odd tape issue on Cpc464
Post by: Sidney on 19:52, 12 July 17
I've heard from a couple of sources that the volume you have the cassette deck on the Cpc can effect loading. I have to say I can understand that for the Speccy with extra tape deck etc bit surely the Cpc volume only effects the sound through the speaker and not the level the machine reads data. I stand to be corrected of course.
Title: Re: Odd tape issue on Cpc464
Post by: pelrun on 20:09, 12 July 17
The volume control on the cpc itself doesn't affect the cassette loading at all. All non-464 cpc's use an external tape player though, and the volume of *that* is important, as is the phone volume if you're playing into a tape adapter.
Title: Re: Odd tape issue on Cpc464
Post by: CraigsBar on 23:55, 12 July 17
Sorry for being late to this party. But first thing I'd do is replace the tape drive belts. Long tapes (such as those used in compilations) can put more pressure on the drive belts and cause the spools to stop exactly as you describe. I had the same issue on a c64 datasette recently  and a new pair of drive belts later all is good again.

Sent from my ONEPLUS 3t using Tapatalk

Title: Re: Odd tape issue on Cpc464
Post by: Shaun M. Neary on 02:31, 13 July 17
Quote from: Sidney on 19:52, 12 July 17
I've heard from a couple of sources that the volume you have the cassette deck on the Cpc can effect loading. I have to say I can understand that for the Speccy with extra tape deck etc bit surely the Cpc volume only effects the sound through the speaker and not the level the machine reads data. I stand to be corrected of course.

Echoing everyone else here, but yeah, that only applies for external tape decks, the volume of a 464 only affects the speaker (which the cassette player feeds into for output only, which the 464plus evidently did away with in 1990), and has no bearing on the loading. So unless they're talking about external tape players on machines with disk drives, your sources are misinformed.  :)
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