I like the comment field in the .jpg image format; if viewing an image
in IrfanView, I just type I then C, and I can add comment text, that
then actually becomes part of the file, thus surviving any renaming,
zipping, even emailing. (I use it a lot in listing who's who in group
photographs [I come across those a lot in genealogy], but general
information about an image is useful.) [I _presume_ there are other
image-handling softwares that can access/edit this field, though I don't
know what they are; I'd be interested to know.]

I'd like to have a similar facility for videos (I have mostly .mp4
format, but am interested for any format): _is_ there something
intrinsic to the format? I'm not talking about a subtitle "track", or
anything like that - just a comment field. And if there is, what
software can access - and/or edit - it?

At present, I'm reduced to either putting information into the filename,
or keeping a text (or other, such as .doc - I only use that for the one
or two places I want to e. g. include some Russian) file of the same
name in the folder next to it. Both of which are unsatisfactory compared
to an embedded text field.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

Veni, Vidi, Vomit (I came, I saw, I was ill) - , 1998