ALWAYS set your burner to master and the other drive to slave (preferably slaved to the hard drive to leave your burner as a stand-alone master)
This may be stating the obvious... but also make sure you are using a good quality 80 pin Ultra DMA IDE cable, not one of the older 40 pin cables.
I've been playing the same game as you burnguy, but with a twist. I got my lite-on 1633S from Newegg back around Nov 22. And just to clear up hardware "issues" I run a Gawd awful Compaq, 1.3Ghz Celeron, 384Mb RAM, two 40GB Hard drives... so definatly not a powerhouse system. Using my First drive with a spindle of 100 4X DVD+R disks, I was able to burn any movie I wished and it would work on all the DVD players in my house. To burn the movies I used Nero 6.6 and DVD Shrink. I did have a couple disks out of the batch that did Slow down for no reason. I would come back the computer and find that I'm stuck at 52% and it's moving like mollases. I chalked it up to the El-Cheapo Disks that I got from Newegg. I wish I could give the brand but the label was tossed long ago. Anyways, the first drive came with the Firmware that came before BSOR, it worked great after I changed to BSOR as well. Then, because of a little physical defect with the tray, I ended up RMA'ing it back to newegg, and when I recieved the new drive it came with BSOR firmware. I plugged in the drive properly and immediately upgraded to the BSOS firmware, thinking it would solve the intermittent slowdown problem. Then I tried burning a disk, and it did burn fine, no slowdowns in the 8 disks that I burned with the 2nd burner, BUTthere was a problem. Not a single disk burned from the 2nd burner would function on the 2 GE DVD players in the house, although the disks burned with the first burner played just fine. (Sidenote: The disks from the second burner did play on one DVD player-- a "Norcent" Brand DVD Player. I have yet to figure out why the Walmart $30 special could read the disks and the $85 "GE" could not) I checked everything, and the only thing that changed in that time was the Drive itself, and the Firmware. Nero had not had an upgrade in that time so I couldn't blame it. So I set up another RMA and have just recently gotten the replacement drive from newegg, with the trusty BSOR firmware. I'll be smarter this time and test it before I consider upgrading firmware. So even though I don't have a concrete answer, this should let you know that you ain't the only one with Gremlins with the lite-on drive.
