Awesome! :)

IIRC it was rather hard to recode video to an mpeg format this would accept.

And a solution that would not require recoding would be preferable.

On Linux we have John's GStreamer plugin, and he once compiled it on OS X too. Not sure how hard it would be to port to Windows.

The Best Way would be a generic VideoPlugin that would have different implementations for each platform (e.g. QuickTime on Mac, GStreamer on Linux, DirectShow on Windows). That would be quite some development effort, however. 

- Bert -