Installing videos on your ipods or other video players

I've been asking myself - what good is it having a video iPod or Creative Zen V if you can't download videos? Even the new Harry Potter DVD comes with a digital version for you to download legally, but it is not compatible with iPods!

Today I heard about an open-source program called HandBrake that is supposed to convert files and it is available for Mac OS X, Linux, and Windows. I may have some time this weekend to try it out. I was really disappointed that our Creative Zen V was not compatible with Overdrive's collection of downloadable videos. It works great with audiobooks, but not videos.