I copied video from my sony dcr-dvd203 camcorder onto my computer hard drive. The video files were stored as MPEG files on my computer. I could play the mpeg files using windows media player and also real player.both audio and video were fine. Its been 3 weeks now and now when i try to play the same videos video is playing but with no audio. In the 3 weeks i installed sonic my dvd software,Pinnacle software,nero software trying to burn my video files onto a a regular size DVD/VCD but failed to burn using above softwares.I have dvd burner hardware on my laptop and desktop. I also uninstalled all the above sonic/pinnacle/nero softwares. Again copied my video files from my camcorder onto my computer harddrive but even my new video files play only video without audio. Please help...lost patience. thanks in advance