i just have to say 1 thing, every1 claims up and down that the speed you burn at and the kind of cd's you use will affect what you burn. i can vouch that they do not have any effect. i have used extremely cheap cd's for burning multi-session games like for dc (sorry for dc reference, but its a good example) and have it burn at 8x which is the fastest my burner can go, and have no problems with it at all. in my experience with all kinds of platforms, if it doesnt burn right and you swear you did everything right, than you either missed something really small, or the person ripping is a moron.
this may sound different than what most everyone else says, but its absolutely true. if your burner cant burn things correctly on a fast speed, than you need a better burner. mine isnt top of the line, but it does justice.
i am not for one minute saying this to brag, but i have burnt more than 300 game cd's spanning over 3 platforms, all at the highest speed my burner can go at without getting a buffer under-run (which is usually 8x, but sometimes 6x).
i just wanted to say this so that everyone out there knows that you can buy shitty cds and have a working game, but the things is, shitty cd's may have big problems about a year or so down the road, so far i have had no problem, but a few of my friends have.