In DVD Player, What is Error -36 and how do I fix it?

Question

I bought a new superdrive dvd player/burner (for DVD -R, -RW) and installed it in my Pismo. Reason I got it, I was having trouble viewing DVDs I'd compressed from a regular commercial DVD to 4.5GB DVD -Rs using the application DVD2oneX2. They play fine on my wife's 12" aluminum with original superdrive.
But I'm getting the same error I got with the previous drive. "DVD Player has encountered an insurmountable error--the disk may be scratched or dirty -36." It kind of hiccups, I get the message, and DVD Player closes. These are brand new DVD -R. Furthermore, when I reinsert the disk it will often play, starting from that very same start. Sometimes I have to reinsert it four or five times, but eventually it plays the part it balked at before.
I've just done a clean re-install on my hard drive, and repaired permissions (there was initially an error in -r, -rw permissions that is now corrected). But it's the same problem every time: the DVD runs for twenty minutes or so, then quits. And since this was the same with the previous drive, I'm thinking it's something in my Pismo--hopefully something fixable, as I mainly got the new drive so I could burn and watch series of lectures that I borrow from my university library (you can only keep them out for two days.)
One other problem: nobody carries DL DVD-Rs. Imation makes them, but nobody has them in stock.
Thanks for any help you can give,
Giles

Answer 1

By itself, the question has nothing to do with
any Apple Support Community topic, so far.
Could you tell visitors some information about your Apple device, the OS (X?)
and the web browser version in use? Is the browser up-to-date? Have you
tried a different web browser to access the site, to see if that'd work? There
may be settings, certificates, or other details in your software, or on that site.
{Is your computer an older PowerPC G3/G4 or G5? This area concerns these
models of older iMac build architecture; or so the general expectation goes...}
Good luck & happy computing!