Drupal, swf tools - handling different filtetypes

I just had the following problem and it took me a while to figure it out.

I have a node type where you can upload either video, audio or a video-link. I use swf tools to playback the files. The problem was for the video I wanted to use another player than for the mp3. It was not possible to choose different players under file handling (admin/settings/swftools/handling). Because I had to enable the jw-player under "Default player for a series of mixed media files" otherwise no file would playback - because my node actually has mixed media.

The node does not know what file is audio or video. Luckily its very easy to solve you just have to assign the file - endings to the format. See advance settings under (admin/settings/swftools/handling)