Video played with XBox format on Win8 Pro

I had ripped a few video clips from DVD disks to my PC and played them well on Win 7 WMP.
Since I upgraded my PC to Win8 Pro, I could not play my clips with Xbox video format. I had to go back to use WMP.
Is there any software and anyway around to convert WMP format to Xbox format?
Regards
Ngan

Never mind! I figured it out. I used the free AVS video converter to convert the clip to MP4.
Ngan