Some DVD playback software wants a region code setup, but most
do not. Check the options and setup of the players. It is the
drive that usually determines the region to be played. As an
experiment, give VLC Media Player a try here ............
Do keep in mind that the Dell Diagnostics would not read a DVD.
That may well indicate a DVD laser weakness or failure. Let us
know how things work out.
I upgraded a Dell latitude D820 to 320 HD; Window XP Ops System. DVD RW +/-
I tried playing a DVD and the system would play it. Status: " Window Media Player can't play this DVD because a compatible DVD decorder is not installed on the comuter. I don't whether any other functions are working."
What do I need to play DVD and burn music?
The DVD decoder is a program for playing DVDs. If you go to Osprey's Toolbox (link below), you'll find VLC Media Player, which will solve this problem.
You'll also find resources for burning discs. ImgBurn is a good freeware disc burning program.