Ok guys, help me out here. I have tried a number of dvd software programs to no avail. Ever since I upgraded to Windows XP, the dvd rom on my comp doesn't want to read dvds. It will run other software, but when a dvd is inserted, it will run the initial screen to play the movie in most cases, but will be unable to play it because it says the decoder is missing. It will do this on a number of different programs. I'm trying the power dvd player like a previous link suggested, but if this doesn't work, anyone have a suggestion? Thanks all.