Does anyone know what rate the rio-recievers can decode up to ?

Latley I have been ripping my cds using Variable rate encoding. [which can go WAY over 192 - but still compresses it at around the 192 range]

I noticed that my rio's would not see many if not all of these rips.

I am running jreceiver 0.2.4 on redhat.
and have both sonic blue and dell receivers from tiger direct.

what normally happens is that the rio will see the song on its display, but then when i try to play it .. it will just sit there and blink at me. Sometimes songs will not even show up in the listings (which i believe is a jreceiver bug)

any direction would be appreciated.