Media RSS with different media (video) formats - problem and solution

Most of video sites are providing Media RSS feeds but not all of them provide URL of Flash Videos or Audio. Some (YouTube, Brightcove etc) use element to point to their player (or page) and some provide videos in different formats (mov, wmv etc) and some (Revver etc) have videos encoded in Flash-Video-Format (flv) but their Media RSS contains (different formats mov, wmv etc). Due to various reasons (monetization purpose, traffic-statistics, advertisement, not enough resources to of transcode media etc), these sites are not providing the link to Flash Videos (.flv files) in syndication-feeds. I understand the concern and problems but there is solution that would probably:-