To quickly find content that references a specific content id within CoreMedia7 check the CM command line tools. You’ll find a query command which allows you to execute content queries from the command line.
So a neighbor of mine came up to me with a VTech KidiGo. It’s a kids audiobook, mp3 and video player. And it’s a horrible one at that. You either have the choice to buy audio files and videos from VTech, or you’ll have to put up with a video player that only accepts a strange format.
So this neighbor came up to me wanting to put videos on this thing and of course nothing really worked. Everything I tried failed on the KidiGo with “Invalid Format”. Finally I tried to transcode the video with ffmpeg and what worked was the following: