Im having a hard time backing up my backups. I've noticed alot of scraches on my backup and Im trying to back it up but everytime i keep getting read errors from dvd decrypter and alcohol. Is there a special way to back up backups or did i do something wrong when i first burned them?
Yeah, Sly's right. As for special methods : No, you back up your backups the same way you copied the originals. In fact, if you made a rip for one of them, it'll be easier the second time around, seeing as you won't have to re-rip.
So, yeah, Alcohol or DVD Decrypter just like you did in the first place will do the job needed.
If your backups are SO scratched up that you can't even read them, then you need to either re-backup the originals, or you need to restore the bad discs.
From personal experience, the liquids (solutions) for fixing CDs and DVDs just don't work. Tbey waste your time and your money. Yeah, it may be fairly cheap, but it's not going to work. If you really, TRULY, need to repair your discs, you should buy a Game Dr. Those things work like a charm.
They're expensive, but those are the ultimate solution to fixing your discs (short of taking it to a professional restoration service)