Unable to get past Compress

My OS is Win XP/SP2, using Nero
Yesterday I attempted to backup my entire C: drive(11gb.) with >60gb of
free space.
It goes along OK, at Compression Stage it gets to about 45% then dies.
“Compression Failed”.
Would someone tell me how to get around this?
Thanx. :sad:

Don’t Compress

Then waht is his alternative if he does not compress?.