Is it possible to add my own metadata to MP4 H.264 file? I would like to add things like: caption text, date filmed, director's name, location, etc. Basically similar data you can store in IPTC fields in photo files. WMV files support this, and windows media player shows the metadata, but I'm not sure about MP4 H.264. If yes, what tool would I need to edit this metadata. I'm using Premiere CS3, but it doesn't seem to have such editing option, or at least I didn't find it yet. I'm also not sure if this is a limitation of the MP4 container or CS3.
I tried Bridge, but it doesn't allow any meta data edits to mp4 files. It does work with MPEG2 though by creating an xmp file. I'm not sure though what other programs are able to read this xmp file, Windows Media Player is not.