search for: flac_options_level_0

...encode time." This suggest that if the max LPC order is low then using -e will not be slow. The max LPC order is set explicitly using the -l option or, more usually, by setting a compression level. Compression levels are described at: http://flac.sourceforge.net/documentation_tools_flac.html#flac_options_level_0 Note that compression levels 7 and 8 also set the -e option. I have not attempted to explain what the LPC order actually is because I do not understand it well enough Regards, Martin. -- Martin J Leese E-mail: martin.leese stanfordalumni.org Web: http://members.tripod.com/martin_leese/