[mwcampbell]

The "better than MP3, AAC, and Vorbis" part of the title is apparently editorializing by the submitter, because I don't find any references to any of those formats in the OP.

[MrZeus]

Touché, the comparison tests are at http://opus-codec.com/comparison/

[rogerdpack]

Yes, was it "this version" that made it better than MP3? I'd have thought the title would say what was new. Guess not...

[clouddrover]

Opus has always been better than MP3. Another big benefit of Opus over AAC and MP3 is that Opus is royalty-free for all uses whereas AAC and MP3 require the payment of patent licensing fees.

[theandrewbailey]

The last of the US patents covering MP3 should expire next year.

http://www.tunequest.org/a-big-list-of-mp3-patents/20070226/

[phaemon]

It's under the "Comparisons" link