Is There A Way To "Tag" Videos Like MP3s

I have a temp job and part of it was to convert the videos they took at various functions (like “team rallys” and picnics and stuff) and put them on YouTube and create a private AVI file on their website.

This was fine, but what I need to do now is organize these into tags. Now it’s easy to do on an online site like YouTube, but the company wants to get their videos off of there and only use their site.

Before I start looking I’d figure I’d be lazy and ask here if there is a way to tag the files themselves like you do with MP3s. You know how you can assign MP3 tags like “genre” and “year” and so forth.

I know it’s easy enough to add tags through the database but I wanted to see if I could tag the file itself

Thanks