windvd4 problem....

[Tommie]

i have a laptop and a computer that has a problem reading dvd's....im using windvd4 to play my dvd's....i tried using wmp and other players too but it didnt work at all either....the one on my laptop is a TOSHIBA DVD-ROM SD-R2412 1 Drive combo....(DVD/CD-ROM drive) and the one on my computer is a DVDRW IDE1004....both computers r on windows xp professional sp1....is it my dvd/cd drives or is it windvd4 itself that is messed up??..