Hello, I am trying the ripper/encoder CDEX 1.20, with the Lame (3.38 engine) encoding option. I surprisingly observe large file size differences depending if I select MPEG1 or MPEG2 (30% smaller). So: -I don't know exactly the differences between MPEG1/MPEG2 layer 3, but I though they were very small ? -I didn't find how to select MPEG1 or MPEG2 by using the command line version of Lame (I tried 3.70) Many thanks for your help, Pierre Hugonnet -- MP3 ENCODER mailing list ( http://geek.rcc.se/mp3encoder/ )