i have a dvd burner that will play cds loud and clear but when i play dvds i get video with no sound. i installed a differant dvd burner that works in my other system with know problem but when installed into the system that the other dvd burner was in i got the same results plays dvds with no sound. i did a firmware update and that did not work. i updated the on-board audio drivers and that did not work. i installed a sound blaster live 5.1 sound card and updated the drivers and that did not work. if some one could help me with more troubleshooting ideas i would be most greatful. p.s i also made sure the volume was not muted when i played the dvds.