== Beware : HD ==
Nowaday, only HD the most common 3"1/2 disk is HD. These can be found at good as used or new old retailer'sstock on auction sites.
But our beloved CPC can't understand easily the concept of High Density Disk with 1,44MB available... so you have to cheat to use the media: just put some opaque duct-tape (scotch-tape, whatever...) on the HD Hole.
So you have to cheat : just put some duct-tape (scotch-tape, whatever...) on the HD Hole.Tada, a proper the drive will think DD disk with 720 KB (if your OS allows media is used and now it).Or a common 2x178KB with [[AMSDOS|AMSDOS]] (stock CPC firmware) - if you have a manual side switcher button of course to read second side of disk's usable.
PC users used to do the opposite : file a HD hole on DD disk...this worked well sometimes.