A friend lent me a couple backup copies of dvd movies, one on Verbatim DVD+R, the other on Fuji DVD+R. I played both discs flawlessly on my Panasonic DVD-CV51 once. The next time I tried playing them, I got a cannot read error. What happened?
I had looked at your database and it's one of the places that says DVD+R can be read by the CV51. Maybe Panny has a sneaky circuit that jimmies and disks not RIAA approved.
I solved the problem. I spritzed the disc with some LensCrafters lens cleaners and wiped it clean with a 100% cotton rag (perpindicular to the tracks, of course). Voila! They play. I guess keeping the discs clean is imperative.
DVD-R/+Rs are really picky about being clean.. the slightest dirt can make the difference between being playable or not.. something about the reflectable of the dye , if the disc is dirty the laser gets really phucked up and confused.. Point : Keep discs clean.. if disc doesnt werk, clean the disc and / or the dvdplayer laser with a dvdcleaning kit.. should clean dvdplayer laser about what every 100 hrs of play? something like that