I am trying to import a mov file to After Effects, but all I see is a shite screen. I can't open the video file with quicktime, but I can see it with VLC player. I know that it's a codec problem. What should I do?
Figure out what codec the file is in and use conversion software that can read that codec to transcode the file to a codec QuickTime and AE can read, which there are very many of.
You can search this forum and related COW forums for answers if you either don't know how to figure out what codec the file is in or don't know what conversion software to use ... there are various software tools available to identify codecs, as well as to convert files to different codecs (including free ones in both categories).
If you're really stuck try opening it in a dumb word processor like Notepad. Search for "Apple Video Media Handler". You may find the codec (e.g. "HHH.264" ) eventually appearing sometime after that text string.
I'd paste the code into this post, but the COW couldn't show it.