I have the same problem. I could read, but not write to CDs created on my older Dell computer which uses a different CD writing program. I called Dell, they said it is an incompatability issue between the two programs. What I did was: I created new CDs for each one I wanted to use, not by doing a direct copy from one CD to another, but, I copied the CD contents from the original CD onto my hard drive, removed the original CD, then copied the files from the hard drive onto a new blank formatted CD created on my new machine. I keep the old ones just for backups. Hope this helps. 

thanks for the note Jim.

I never rely on these programs for my important Backups. Always use other means and keep backup- backups, such as zip Drives. I was just a bit caught out with the incompatibility of two programs doing the same thing.

Thanks