Think of it as MP3 vs Ogg Vorbis. It's equivalent, slightly newer and a bit nicer, but really the benefit is that it's patent-unencumbered and you are free to t

Think of it as MP3 vs Ogg Vorbis. It's equivalent, slightly newer and a bit nicer, but really the benefit is that it's patent-unencumbered and you are free to tinker with the ISA and build your own versions at will.