dvd decoder

[Wtdvl]

I'm new on the computer. I cant play dvd movies on my IBM thinkpad T21 with windows 2000 no matter what I download. The computer tells me I need a decoder that is compatable with windows 2000, my dvd drive alone is not sufficiant. Can anybody tell me what I need?

[Enchanter]

Buy a DVD player software, like WInDVD or PowerDVD. You need that in addition to your DVD-ROM.