The script also work in the Reports tab, which isn't limited to pages.

Update 2007-12-22: The script also fetches the total rating (votes) your video have received.

Update 2008-04-24: Google updated the interface for Google Video, and in the process broke the way the script fetches ratings. Updated the code, and thanks to the new redesign the script fetches the ratings much faster!

Update 2008-04-25: I just noticed that, since the update to Google Video, the script isn't fetching comments made after 2008-04-18. Google probably duped the database and the old way of getting comments only fetches from the old database. I will try to fix this soon.

Update 2008-06-15: I finally took the time to update the script to fetch the comments correctly since the redesign to Google Video. Comments also fetches much faster since only one request is needed.

Update 2008-06-20: I've added gvidcomments as a project on google code. I've released a new version which contain some minor changes. The built-in updater won't update you to the google code version yet, but I'll do that soon enough.

Update 2008-07-05: Since I changed the namespace on the Google Code version you will have to uninstall the previous version manually, otherwise you'll have two scripts installed. Check this page for help.
I've updated the script hosted on my site to a version which will help the user update to the Google Code version, so the autoupdater will first update to that version, then the next time the user tries to update he will get the information how to update to the Google Code version.
I'm getting "Error code 3" when I'm trying to check my comments nowadays. My only guess is that Google is somehow stopping the requests, I have no idea if it's an automated mechanism. I'm pretty sure I can work around it though, will do that later.