variations that could corrupt the lossless nature of the compression (the Pentium floating-point bug being an example). It is possible that a lossless compressor that used floating-point math could generate different output when running on that faulty Pentium. Even disregarding actual bugs, floating-point math is complicated enough that there could be subtle differences between "correct" implementations that could cause trouble for this type of application. A 32-bit error detection code to the generated streams is included to maintain user confidence in the integrity of WavPack's compression. WavPack source code is portable and has been compiled on several Unix and Unix-like operating systems (Linux, Mac OS X, Solaris, FreeBSD, OpenBSD, NetBSD, Compaq Tru64, HP-UX...) as well as Windows, DOS, Palm OS, and OpenVMS. It works on many architectures, including x86, ARM, PowerPC, AMD64, IA-64, SPARC, Alpha, PA-RISC, MIPS and Motorola 68k. A cut-down version of WavPack was developed for the Texas Instruments TMS320 series Digital Signal Processor. This was aimed predominantly at encouraging manufacturers to incorporate WavPack compression (and de-compression) into portable memory audio recorders. This version supported features that were applicable only to embedded applications (stream compression in real-time, selectable compression rate) and dropped off features that only applied to full computer systems (self extraction, high compression modes, 32-bit floats). The TMS320 series DSPs are native integer devices, and support WavPack well. Some "special" features of the full WavPack software were included (ability to generate a correction "file" (stream), for example), and others were excluded. The port was based on version 4. WavPack support was added to WinZip starting with version 11.0 beta, released in October 2006. This extension to the ZIP file format was included by PKWARE, the maintainers of the format, in the official description file starting with version 6.3.2, released on 28 September 2007. See also Comparison of audio formats MPEG-4 SLS FLAC TTA Monkey's Audio Meridian Lossless Packing References External links Official website WavPack forum at Hydrogenaudio Forums Historical versions at ReallyRareWares A comparison of several Lossless Audio encoders at Hydrogenaudio Wiki. WavPack on MultimediaWiki WavPack frontend Flash WavPack player Lossless audio codecs Computer file formats Free audio software Free audio codecs Open formats Software using the BSD license