This is a new thread to replace the old slightly mis-titled thread
I have written a Windows program that links J River's Media Center (JRMC) MP3 player software to Russound's CAV6.6 6-zone multi-room audio controller. This software allows you to see artist and track name on the CAV's keypads and use the keypad buttons to play, stop, pause, switch to next/prev track/artist, etc. Each zone number defined in MC11 maps to the same source number in the CAV.
The software requires the latest CAV6.6 controller and keypad firmware, which should come standard on all new CAV6.6 orders, but you may have to upgrade it if you bought a CAV6.6 2004 or earlier.
You can download JRMC from here
but note that it is not free software. Many users (including myself) have had problems getting MC11's multi-zone support to work with non-ASIO soundcards. As such, if you are considering buying a new soundcard for use with multi-zone, I would recommend a card that supports ASIO. Many people have reported that the M-Audio Delta cards work well.
You can download the link software from here
. This is free software - I wrote it for myself. If you like it and it suits your needs, great. If it doesn't meet your needs, don't use it. Suggestions are welcome but the software comes with no warranty or support.