Hello, it's probably not a great idea to do the conversion in only one pass if you want to keep a good quality... You could for example have a look at : http://magma.epfl.ch/greg/scripts/MENCODER BUT, I have learn something about sed with your script, thank you for it !!! -- Gr?goire Favre ___________________________________________________________________ http://magma.epfl.ch/Gregoire.Favre mailto:Gregoire.Favre@xxxxxxxxx