Playing various sound formats on the browser is a difficult experience for many. Even just midi and mp3 within browsers is difficult sometimes. Most plugins require big supporting software and frequent updates.

The adobe swf and flv plugin seems to integrate well with all browsers and is small and quick to update-setup. If small and medium mp3 and midi can be converted to swf or flv and played hidden in the webpage it could make integrating of sound in pages easy. So we need a midi to swf converter or a new flash sound only format like FLS, Flash Sound ?