Hi, Is it possible to use mencoder to convert an audio-only file? mencoder -af volnorm -of rawaudio -oac lavc -lavcopts acodec=libmp3lame:abitrate=256 -o out.mp3 test.wav and I get: . . . Audio file file format detected. Video stream is mandatory! Exiting... Please help. thanks -- Tong (remove underscore(s) to reply) http://xpt.sourceforge.net/techdocs/ http://xpt.sourceforge.net/tools/