I copied a dvd video file into my hard drive two days ago. There was no problem at first. But, for no reason at all, i didn't change any settings whatsoever, there is no more audio. And worse, after trying a number of .ifo files, there will be no more video.

Previously, what i had is wmp10. I upgraded it to wmp11 and updated my codecs but still it was not fixed.

This problem does not affect .avi or .mkv videos.

Please help guys...

Thank you very much.