Dummy Files??
 

What's the use of dummy files?? my backupz work fine w/out them :p

A dummy file makes your game load faster and it stops your game cliping. A dummy file put the data of the game at the end of the cd, where the laser access the easiest.
If your game once ripped and downsampled is around 650Mo you needn't to use a dummy file.

CYA!