You have Vista, right?
I have no idea how Vista tells you what hardware you have, but on XP, it's like this:
Start > Control Panel > System > Hardware > Device manager > DVD/CD-ROM drives
That'll tell you what your drink holder actually is. For my desktop, it says "BENQ DVD-ROM 16X"
But for my desktop, using Win XP, I still had to install a codec before Windows Media Player would play a dvd in the drive. "K-Lite Mega Codec Pack" does the trick, as does switching to VLC Media Player. (And I still haven't tested the laptop drive, so I dunno for that.)