Note: help and version output are generated by a naïve script which tries a few variants of
<command> --help, <command> -h etc. to find the command's help and version info.
Sometimes it gets lucky, sometimes it doesn't; if the output below looks wrong, it probably is.
dvd+rw-mediainfo -V (return code: 143)
--version: unable to open: Block device required
dvd+rw-mediainfo (return code: 150)
usage: dvd+rw-mediainfo /dev/dvd