" 0: iTunSMPB (default)\n"
" 1: ISO standard (edts + sgpd)\n"
" 2: Both\n"
-" --ignorelength Ignore length of WAV header\n"
+" -I, --ignorelength Ignore length of WAV header\n"
" -S, --silent Don't print progress messages\n"
" --moov-before-mdat Place moov box before mdat box on m4a output\n"
"\n"