There is some videos that i try to put into Sony Vegas, but somehow it only imports the Audio without the video , Mosly MP4 (.mp4) files i cant even put them in the software there is any soultion?
Likely the video format is newer than your old Sony VEGAS. As a workaround you can convert the video to a format Sony VEGAS can read like AVC in an MP4 container. Try the free ShutterEncoder, convert to output codec h264 and in advanced settings limit the GOP to your framerate for a file that will edit well.