ATRAC3 in open source?

[vkem]

I found next ATRAC3 codec zip pack from the web:
http://www.minidisc.org/mdlpfaq.html#_q72

It seems to encode all right ATRAC3 to WAV container. Would it be possible to use this audio codec in Matroska or is it available open source from somewhere? The author says that this codec from 2001 is created of publicly available bits of ATRAC3 codec information.

[Atamido]

You could store the WAV file in Matroska. But, this would certainly not be optimal as it wouldn't be using the native ATRAC framing. If someone knew how the framing in ATRAC worked, then it would be a simple matter of storing the native ATRAC frames in Matroska blocks. After that you just need a filter that can play back ATRAC.