Can't make CD-Copy of multisession disc



I tried to do a CD to CD copy with Nero. It worked perfectly. But the new CD doesn’t work, while the original works just fine. Does Nero have a problem making copies of multisession CDs? I’m using Nero 5.5.

I also read here about BackItUp, and I think I read that this Nero utility states explicitly that it can make backups of CDs and DVDs, but not if they’re multisession. True? What option do I have to make a perfect copy of a multisession CD? CloneCD?