An update:

Like the standard client, it appears that Rioplay is unable to transition from the completed play of a transcoded tune (of arbitrary length) to the next tune in a playlist. Tried with both ogg->mp3 and flac->mp3 transcodings.

The Reza client doesn't appear to work with jrec yet and hangs during initialization. Either that or I don't have it properly configured yet.

--Reed