We release in both WMV and MPG, as well as in M4V for iPods, MP4 for PSP and other PDAs and players, and in 3GP for cellphone video
But even with 5 different formats available, well over 90% of the downloads are in the WMV format. That is what the vast majority of users still want.
We did a test with FLV but our members just didn't like it. There is such a trade-off with quality versus file size.
Carol xoxoxo