Re: JBK disc is not-readable

Jeff, sorry for the late reply, I've been busy with the software, didn't check this site for a while.  
A few question with your problem.  Does the original disc stock DVD (silver surface not DVD-R)?  Did it just stop working one day, or does it got intermittent lately?  If you could read and copy the disc, that seem like the disc is okay.  It points to an out of tune (or dirty) player optical components.  My JBK doesn't have that problem yet, but I have a DVD player before that could read certain discs only as it get older, and eventually it doesn't read any disc at all.  If that's the case, fixing it is a big challenge, if not impossible.  You could try to clean the reader lens by opening the cover and use the camera blow brush to clean it.  If that doesn't work, then it's just trial and error by looking for some pots near the read header and adjust them to see it help.
Or just try to get some good quality DVD-R (Sony) to see it help.  Sorry, I am pretty clueless too!