Disc Copiers - Nirvana (ROM) and Xexor (Disc)

[ComSoft6128]

This video shows Nirvana and Xexor being used to copy what turns out to be a dodgy Drive B 3.5" disk formatted as Data  - damaged tracks are 40 and 41. Both programs show "3A" in the sector information for the damaged tracks only- any ideas what this is?
Also I may have to revisit this video at a later date - the "." key with the function keys is broken which meant I was unable to access the pull down menu system used by Xexor - this is shown when I have to hastily access the on disc help file that comes with Xexor.

Also missing from the video is the torrent of nasty four letter words I used when I found the "." key to be defective.
https://www.youtube.com/watch?v=h0vK0wDClE8&feature=youtu.be

Some info:
http://www.cpcwiki.eu/index.php?title=Nirvana&mobileaction=toggle_view_mobile

http://www.cpcwiki.eu/index.php/User:Executioner

Nirvana (disc version) ACU review:
https://cpcrulez.fr/applications_disc-nirvana__ACU.htm

Xexor AA review:
https://cpcrulez.fr/applications_crack-xexor.htm