dubdv --version (return code: 0)
insert_audio: version 0.0.2 http://libdv.sourceforge.net/
dubdv --help (return code: 0)
Usage: dubdv <audio input> [<filename or - for stdin>]
--version show dubdv version number
-v, --verbose show encoder statistics / status information
-a, --audio-input=STRING choose audio-input-filter [none, >wav<, dsp]
-o, --output=STRING choose output-filter [>raw<]
-t, --truncate truncate output at end of input
-r, --repeat=INT repeat the first video frame this many times
Help options
-?, --help Show this help message
--usage Display brief usage message