This site gives details of The Ambisonics Association and its work. The Association was created in April 2008, with the general aim of promoting ambisonics. Its initial work is concentrated in the (fairly technical) areas of the creation and promotion of collective marks ('trademarks'), standards (e.g. for file formats) and other necessary infrastructure for ambisonics.
al free universal audio/video batch transcoder, putting together lots of excellent audio/video codecs and tools from the open source community into an all-in-one solution, capable of transcoding among different audio/video formats with many extra features
A bit more feature powered than Zamzar. With more formats and a bit more complicated interface. However, I can guarantee you that it’s worth the usage. No email needed. 100Mb limit
WavPack is a completely open audio compression format providing lossless, high-quality lossy, and a unique hybrid compression mode. Although the technology is loosely based on previous versions of WavPack, the new version 4 format has been designed from the ground up to offer unparalleled performance and functionality.