Reason for saying is because of my little adventure....
Went to midnight launch, got home and received a disc read error from disk 2 ("play"). Took it back in the morning and the shop cleaned it. Got home and got disc read error (I'm removing and cleaning then resetting the Xbox each time etc, the usual procedure). Took it back a day later and they cleaned it again then tested it in store. Seemed to work so brought it home and it worked fine. This morning I got another disc read error!
The shop told me its my xbox and the problem is "laser burns". I was also told that these are HD discs and are VERY sensitive, any slight movement of the Xbox and boom you have a problem. This hasn't happened with any other disk, any other game, disk 1 installed without a hitch and i NEVER move the xbox or any device that contains a disc in it. The shop also said that as of yesterday morning around 10.30 they said this was the sixth gtav game coming back with scratches.
You have been warned!