Why isn't my new DVD Drive working?

ok first of all what letter is your computers cd/dvd drive if you only have one? and my cd/dvd drive is not working cause i think its not showing up in my cumputer but i dont know what drive letter it is cause i have virtual drives on my computer also...

heyz, i have the panasonic DVR-111D burner, it was working good till i installed windows xp professional over vista beta 2, the thing is the bios aint detecting my drive :(, i tried changing the power cables..didnt work,set the drive to slave...didnt...

i was burning a video onto a dvd disk on windows dvd maker on vista on my vaio laptop. it got all the way up to 99%, then said error, cannot continue. since then, anytime i put a dvd in my drive, it starts making sounds like the disk is rubbing against...

ok a little background i have deamon tools installed i think this is my problem but i cant seem to fix it when i put a blank dvd-r in the drive img burn detects it as a dvd+rw and says it needs formated how can i fix this problem?

When i enter a disk in to the cd dvd drive it said please enter a disk in to drive E... but there is a disk already in there...i have how do you fix this problem...plzz help

ok so i thought i was good at solving these things....heres the situation. It was working... I took it out for a while for a different one... but when i put it in... the computer detected it.. xp reports no problems... but it wont read anything... i...

i changed my windows from windows xp to windows 7 and now in computer it doesnt show my cd/dvd drive but i can still open the tray

The light isnt flashing and when i press the open button nothing happens, ive forced it open by putting a paper clip into the force eject hole and ive also checked the SATA cables in my computer and they all seem to be connected. its been fine for a...