Unfortunately I don't have the BAK cd ver but....

I have noticed problems copying Audio tracks from some DOS games......doesn't matter which imaging programs I use either.....

Try ISOBuster (Which you should be using anyway.....) and see if you get the same results.

I never had any problems extracting any tracks with Alcohol 120%, not sure if ISOBuster can do any better 😉 It does support more image formats and has a few other interesting features but nothing I really need compared to Alcohol. In this case, I am just trying to figure out if my copy is "bad" or it was some common manufacturing glitch. The positioning of bad sectors is very suspicious -- the very end of the data track but past the end of the actual data.

EDIT: Funny fact about ISOBuster. If you go to Microsoft site and try to download Visual Studio 2005 Express (manual install option) you will see a page with instructions how to use ISOBuster to install Studio.

copy right protection ? (the bad tracks)

Could be but it is really too naive. Does not require any tools or any particular skills to defeat it. It would deter archaic 1:1 CD copiers though but those were too uncommon in 1995 to be considered a problem.