Many copying programs have their place alongside each other (Nero, CDRWin, CloneCD).

Easy CD Creator does it in the missionary position. Forget it

Nero is good for audio, normal PC CDs and unprotected PS/PS2 games
CDRWin is best for CDs that need patching
CloneCD is best for everything except music compiles and patching

So if it's a case of whack-it-in-and-copy and to be 100% sure of all sub-channel data being copied, use CloneCD. CloneCD is also the best one to use for PS/PS2 games.