This is a free container audio file. This format allows you to store compressed audio information. Files of this format can be played by any media player that supports OGG, such as Windows and Unix players. It can utilize one of several encoding schemes. The format was developed by Xiph.Org. Its full name is Ogg VorbisAudio.

WavPack: a free lossless audio codec

This format is completely open. WavPack allows for both lossy and lossless compression. After compression, there is created a small file that can be played separately. WavPack also contains a correction file, which allows you to restore the original version. Supported only by certain audio players. This format has high sampling frequencies (192 kHz) and can be multi-channel (up to 255). It is easily converted to the mp3 format.