Uninstall then reinstall the DVD player software.
My dell e310 xp media center edition is equipped with 2 drive trays.
Sony DVD-RomDDU1615,latest firmware,this is player and reader.The other is HL-DT-ST DVD+-RW GWA4164B firware d108.It will also play stuff to.I
have the Roxio burner.It all came with my pc.I have tried updating drivers,they say I have the latest.I'm not sure but it seems like it
might have stopped after last update.New updates for media center that has something to do with roll up 2.Or IE7 update did it.Not sure any
advice would be greatly appreciated!