ffmpeg -qscale 0 -i myfile.wmv myfile.mpgThe -qscale 0 option requests the same quality in the output as input file. Strangely (to me) its not the default. Use -sameq in older versions of ffmpeg.
Computer Tips - How do I convert a WMV video to an MPEG without loss of quality?
Date: 2013sep23 Posted: 2009sep14 Product: ffmpeg Q. How do I convert a WMV video to an MPEG without loss of quality? A.