Olympus VN-4100PC dictaphone

Source code: https://github.com/twilly/odvr

$ odvr -h
 
Usage: odvr [options]
-= Options =-
  -h             : This help.
  -v             : Print version.
  -d <folder>    : Download all files in <folder>.
  -e             : Download everything.
  -l             : List all files.
  -x <folder>    : Delete all recordings in <folder>.
  -c             : Delete all recordings.
  -y             : "yes" to all yes/no questions.
  -r             : Reset the DVR. This may fix some sync issues.
  -D             : Enable debug tracing.
  -E             : Download everything in RAW format.