Anne I just recieved my Ramos RM600 today. See the player here
http://www.mympxplayer.org/new-dap-f...sd-vt2618.html
It is very similiar to yours except mine has 2.4" screen, 1G memory and the updated firmware. It is a truely awesome player as you say. I would think that ramos firmware would work fine in your player whenever it becomes available.
The Aviconverter program version 2.1 should work well with your player.
Dave