Help with an error message

[macrtist67]

Hi.
I just bought 100 Ritek 4x DVD-R disks from meritline.
They are useless!
I work on a 1ghz iMac with a gig of ram with the pioneer 105 running panther.
I keep getting this error message:
The drive reported an error: Sense key=illegal request,
sense code=0x21,0x02 buffer underrun...The disk failed to be written.

I have burned over 50 DVD with no problem. I did notice that when I name the disk it shows up as a DVD-Ram disk...Do you think that meritline sent me the wrong disks?
Any help would be great and you will probably get good karma
thanks.
-Scott

[maestro5050]

You'd probably be best asking this in the Macintosh forums.