It's not totally gone yet but news isn't good for Sony's UMD format as detailed on this
Yahoo page. Now I'm probably one of the very few in the US that loves the minidisc format but even I could see the UMD format was going to bomb. If they didn't keep it so closed up and offered recording capabilities it might've had a small chance. In any case, could this be a sign of what Blu-ray is going to be like?