ZilophiX: ZilophiX is a open-source lossless audio codec.
16-bit PCM compression provides approximately the same compression ratio as FLAC's maximum efficiency setting.
24-bit PCM compression provides compression rates similar to Monkey's Audio's maximum efficiency setting, and in some cases even higher.
Reference implementation of ZilophiX is a released under WTFPL Version 2. ZilophiX algorithms are released in the public domain.