> Why? What are you trying to solve here? You're going to have a hard time making a new format that serves you better than any of the existing formats.

Storage space. But this is the way for the same guys who duplicate 20Gb seven times 'to serve better by the industry standard'.

More sane people would just pack that AD/PCM in a .pk3^W sorry in a .zip file (or any other packaging format with LZ/7z/whatever compatible compression method) with the fastest profile and would have the best of the both worlds: sane storage requirements, uncompressed in memory. As a bonus it would be loaded faster from HDD because a data chunk which is 10 times smaller than uncompressed one would be loaded surprise 10 times faster.