i hope i don't get a lot of flak for registering today and this being my first post
Why on earth would you get that....
With the device plugged in run lsusb and post the result here
If you find it listed you could google for the device number and/or Linux, Mint, Ubuntu... but I can't find anything useful searching for ICD-P620
A bad solution, but a solution - you could connect the audio out jack on the voice recorder to your mic in jack on your computer.