Hello, I have Sony Vegas 7.0 and I was making some wrestling videos. So, I upload the wmv files for the matches, and there's no problems except if I have 2 uploaded at once, it freezes and I have to restart the program. Also, I wanted to edit some hip-hop music videos. I upload a wmv file, it freezes for a sec, uploads the video, but with a video layer with a blank screen, then audio. If I upload an avi, there's not even a video layer, just the audio.