Won't Burn Data Discs...

I have a new Gateway GM5415E w/a DVD Burner (supposedly a multi-format DL
drive). I can burn music (wmas) using Windows Media Player; however, when I
try to burn documents or other data to the same brand of CD-R it simply
ejects the CD and says:

"There was an error burning this disc."

I've tried Windows Burn Wizard (gave me the previous explanation) & Nero
(also unsuccessful)

I've tried other CD-Rs in the stack & I know they work because it burns
music files. Is anyone able to help?!

When I check the DVD-RW Drive's properties it's named...
ATAPI DVD W DH16W1P ATA Device (is there an 'R' missing from RW... does this
matter?)

And yes, the driver is up-to-date! Please HELP!