IIRC, Amiga Classix CD-Roms contain an out-of-date emulator. You can emulate with the current emulator, of course, and that should fix most if not all glitches if there were any to start with.
I think the main concern of these discs is that they were often made without permission of the authors and original publishers of these games thus putting them in legal limbo depending on what your country's laws are regarding copyrights.