"To make it easy to organise your media, each clip is annotated with metadata that can be used for searching and sorting the catalog. This includes both technical metadata (such as file path, audio sample rate, video format, date and time of recording, or camera exposure details) which are extracted automatically from the media file, and annotations explicitly entered by the user (such as clip name, description, project, or clip status). Once extracted, this metadata is stored in a CatDV catalog file (or a central database if using the workgroup server), and therefore provides a permanent and instantly accessible record (even of removable media when it is offline)."
-> such can be "burnt" onto your output file. (catdv)

You should be able to find these 2 products with google.com

No. I don't know of any free tools to do this.

Bob