Does Anyone knows if SSL supports mp3PRO, it will be cool it does?

Scratch LIVE does not currently support mp3PRO. We have no plans to implement mp3PRO support unless we can see a demand for it.

I wouldn't worry about it. mp3pro is really only effective at low bitrates. even then it sounds pretty crap. i have a few 96kbps mp3pro mp3s where theoretically they should sound like 192 kbps. They don't. Ogg is the way to go if you're looking at saving space.