i was editing as usual and now only when I try to add a project the video line does not appear only the audio line and I give it to insert video and when I want to add something to the video track I get that I can not do it, please help me
A container file extension, like .avi or.mpg or .mp4 or .mov or .whatever does not give much information about how your video file was "encoded." To do so, you must also provide a little more information. --- There is one codec for the video, and one for the audio (if present), both of which are "wrapped" in the container file extension"