OK, I just tested it. Converted fine, but when I play on my h10 (6gb), the sound is perfect, but the video is very slow, and out of sync. I'm assuming this is rockbox, not the converter?
Either, nice work!
I'll add a link in my tutorial to this
EDIT: I notice that it says it can convert .flv's, which is awesome. But when I try to add one, it cant find any of my .flvs
. They are all downloaded from youtube. Might it be because I am running Vista and Vista wants to open the .flvs with IE?