I have a laptop with Windows Media Player, but unfortunately can't play DVDS… Windows Vista.
Which program can you install for it?
The VLC player should be enough. https://www.videolan.org/vlc/
The first question is, is this at all a DVD drive, or is it just CD?
If it were unusual, normally all laptops sold with WinVista should have a DVD drive, or just none.
That can even be my 10 year old laptop.