Proof of concept of the tagging tool.

The movie file is not included, it can be downloaded from

http://dl.free.fr/twByRG7H0

Put everything in a folder you can access through your web server (including the movie file).
Set up permissions on "tags.csv" so that the web server can read & write it.(prolly something like "chown www-data tags.csv" will work on Debian)

Requires a fairly basic PHP installation (as long as you have fgetcsv & fputcsv working).