plowking, that's a very good idea but not many developers are doing that. i'm sorry i can't remember any games that doesn't check for the cd again after u initialised the game, but i know there are a few that i have which are like that.
it would be great (hopefully without bugs) if larians will consider that in the next game whereby after u start the game, the disc will be ejected so u can keep it & play the game. i recall larians did the auto-eject for DD installation.
deathatthedoor, audio cd's play at 2X whereas game cd's (much like digital data cd's for games & software) run at maximum speed that your cd drive can offer. that is a big difference so that's why u don't get to hear about worn-out audio discs. as for me i've seen quite a lot of worn-out audi discs. mostly due to cheap or defective players.