FYI, my new Miro packages (formerly known as Democracy Player) have now reached unstable.
After lots of ugly, ugly trouble with even getting a successful build (boost/python/dbus related, you don't want to know) the packages are back in shape now, with tons of fixed (or no longer reproducible) bugs and lots of upstream impovements and new features.
If you reported a bug against Democracy Player, please try the latest Miro package and check if it still occurs, thanks!
The upgrade should be seamless, your existing config and videos will be migrated from
~/.miro automatically upon the first start of Miro.
Some of the new/fixed things in this release include:
Many online video sites such as Youtube, Google Video, Dailymotion, Metacafe, and others only provide limited or inconvenient access to the videos; either they require you to install the proprietary Flash player (and I surely won't do that), and/or you can only view them online (but not download them).
There are some solutions, each with advantages and disadvantages:
After the download, you can either view the videos using (e.g.) mplayer, or recode them into a more sane format. For all of the above programs there are Debian packages available, except for VideoDownloader/UnPlug (but you can easily install those from within Firefox).
Update 2007-07-26: Added UnPlug and swfdec (thanks Joe Buck and Josh Triplet for the comments).
It's available for Mac, Windows, and Linux; if you're on Debian unstable the installation is as simple as
apt-get install democracyplayer (I uploaded the new packages yesterday, they should have reached all mirrors by now).
If you want to know what this is all about, but you're reluctant to install yet another program, check out this screencast (MOV, 37MB) which shows the basic functionality and user interface and discusses some of the new features... I think you'll like it.
You can use it for all kinds of video blogs and podcasts, it'll download and play almost anything with an RSS feed.