The PlayStation Sound Format reference article from the English Wikipedia on 24-Apr-2004
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PlayStation Sound Format

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A PlayStation Sound Format (PSF) file is a sound data file (akin to SPC from the Super NES) ripped directly from a Sony Playstation video game. It has a functionality similar an SPC file, and it has ameliorated that functionality. Therefore, PSF format is technically superior to SPC700 format. The PSF format was created by Neill Corlett in 2003. Neill Corlett later created the PSF2 format. Highly Experimental is the name of the Winamp plugin that plays PSF and PSF2 files. One thing that Highly Experimental can do that the original Playstation console cannot do is play the PSFs at sampling rates above 44.1KHz. A PSF2 file is a sound data file ripped directly from a Sony Playstation 2 video game. The format was named similarly by the way the NSF format was named. PSF2 files can be sequenced or streamed. Streamed PSF2 files take up much more disk space than sequenced ones.

See also: NSF, GYM, SID, SPC, VGM

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