hi there all, just done some tests to find out why this did not work on my MPIO player in AAC mode...

mp4creator -extract=1-audio -mpeg-version 2 <file in> <file out>

it extracts the audio and writes it to an AAC file but... on trying it out it will not play on my player....so i extracted the file WITHOUT setting the mpeg-version flag to 2 and compared both files for differences...the result.....

It seems the the AAC MPEG2 file is correct apart from the -mpeg-version 2 setting is missing the FIRST HEADER IN THE STREAM ( i mean its seeing it but not converting it) all the other headers in the stream are fine. To make it work , i just hexed it manualy and hay presto of we go !! To clarify... the first header in the converted AAC MPEG2 stream is staying....

FFF15080 instead of FFF95080....

fix this and it should work....

(if you dont have the time can I have the source ?..pretty please ? )