LAME 3.90a7 the best MP3 Encoder. Proven to produce the best quality MP3 by many independent sources. This version improves the sound quality, and now has OS/2-specific options to control the program's priority.
Pentium-optimized code
http://hobbes.nmsu.edu/cgi-bin/h-search?key=lame-3_90a7-os2
Source: OS2VOICE