On some machines V1 is faster (Athlon?), on other V2 (P2, P3?). There's currently no 3DNow! or SSE code in it, but the Athlon dislikes unordered memory accesses, the P3 math operations.
Advantages of this Encoder:ca. 35% faster support of 8 . . . 32 bit linear PCM can encode also encode 1 channel files and multi channel files (only first two channels are encoded) support of directly reading LPAC lossless compressed PCM files support of directly reading FLAC lossless compressed PCM files Can directly read from a pipe (max. 27 hours of audio possible) Support of WAVE files with 2...4 GByte (if file system supports this) some minor bug fixes (which do NOT affect audio quality) smoother fade in and out support of very verbose -v -v