Well, I only got the wav-header problem when I wanted to remux existing avi-files, but as you can read above, I also fixed the problem by using besliced/besplit. Seems to be a nice tool indeed... :-) BTW: Any input as if 75/500 is also fine for mp3 (cbr and vbr)? And do you use rec-list/opendml? Seems fine here with these options, but not much testing done...