It's really not necessary since all you have to do is delete the LIVE files. It avoids the trouble of clearing space on the hdd.
man u cant do that in all cases. you can do it to FTP'd copies of the games yes but for downloaded ones its a different story. for some reason they are alot bigger.
Sending fixs now! Listen fools! (This is aimed at people that say "All you have to do is removed the live stuff!") NO SHIT FOOLS! This was put together for people that DL tghe game from a torrent site and when unrared had an iso of the game!!! Stop filling this thread with crap all!