Hello to all.
I recently purchased the NEC ND-1300A from Costco (under the CenDyne label) and promptly ran into the problems of jerky sound and video that fredk was mentioning. CenDyne support doesn't have a clue. However I have solved my problem, and it occurs to me that there may be other Microsoft XP users who have replaced a CDRW drive with the NEC ND-1300A.
My current system is an IBM NetVista A22P with an Intel processor running at 1.6GHZ with 320 MB RAM and 160 GB of hard drive space. XP is the operating system. The system was shipped with a CDRW drive which I replaced with the NEC ND-1300A.
When OEMs shipped systems with windows 98 they included Drive Letter Access (DLA) program to allow writing to CDs without mastering software. This DLA program by Veritas is often bundled with systems from OEMs or installed during the installation of CD burning software. So, when OEMs changed over to Windows XP they failed to realize that XP supports this functionality already and continued to include the DLA program.
In our case I simply deleted the DLA program, and voila! the NEC ND-1300 Plays DVDs just fine. Needless to say I am very happy with the NEC ND-1300A -- It does a great job of burning DVD's, too.
Incidentally, removing the DLA program solved another problem. I recently added a Western Digital 120GB drive. However, every time XP was booted the following message was posted for the 120GB drive: "Invalid Filter Driver." But since the drive worked just fine, I ignored the message. Since the removal of the DLA program, the error message for the hard drive no longer appears.