FILLRIO.SH is a simple shell script that uses the RIO executable to dump music (MP3) files to your RIO player. It's designed to be hands off. You just plug in your rio, type fillrio.sh and come back in 5 minutes.
External memory will be detected.
The RIO utility can be found at http://www.world.co.uk/sba/rio.htm.
Options: just peek at the script to see what the options are.
Diagnostics: The program will complain if anything goes wrong.Download the script by clicking here.