Oh, I know the reason why you can't play the burned dvd well in the dvd player, but only work fine in computer, because you just burned a data dvd from your video with windows media player(directly burn the video onto a dvd disc without convert to the right video dvd format), and you should note most dvd players only recognize standard video dvd well, can't play data dvd, but computer can play data dvd fine, so if you want to play the burned dvd in the dvd player, you need to use a right software to convert your video to standard video dvd then burn to writable dvd disc, you can follow me to use RZ DVD Creator, it can convert any video files to standard video dvd then burn to any dvd disc(DVD+R, DVD-R, DVD-RW, DVD+RW, DVD-R DL, DVD+R DL, etc), easy to use, insert a dvd disc into your computer dvd burner drive, run RZ DVD Creator, select the dvd burner drive as the target folder, then drag and drop the video into the software, press the START button, you will get a right standard video dvd, and you can play the burned standard video dvd well in the dvd player. You can yahoo or google search and download RZ DVD Creator, easy to use, hope it could help you.