I have a couple of these in my house:Hi, last year Yamaha presented the MusicCAST system which provides an easy multi room audio solution. Especially nice are the wireless client systems with LCD display. http://www.yamaha.com/yec/musiccast/ Does someone know simple and not to expensive client hardware which can be used to build a similar system with VDR? Or does someone know what the protocol used by Yamaha is? Emil