I am using a software called vegas 4.0. I downloaded some things i filmed on my camera to my computer. I then was going to edit them on vegas 4.0. Though when I try and upload them, only the audio uploads and plays. The video is gone(theres a small line when u click the file that says Stream attributes cant be determied). I then try and upload a movie i downloaded off the internet and it worked fine. Anyone have any ideas?