I created some back up cds several years ago with Roxio cd creator - and now I can't retrive the files! it says the disk is empty, but looking at properties shows there's info on there. any suggestions??

try using a different cd/dvd drive if you have one

I found a software program called "ISO buster" that is somehow able to read the previously unreadable files!

It cost $40, but I was able to retrive the info, so it was well worth it to me.