Originally Posted by deacongreg
It would be great if they could reach a standard.
There is a standard, DLNA (Digital Living Network Alliance). The goal of DLNA is to "provide vendors with the information needed to build interoperable networked platforms and devices for the digital home" (quoted from DLNA documentation). Several vendors (e.g. Denon, Onkyo, Pioneer) are already delivering components that comply with these standards. DLNA defines mandatory media formats for video, audio and A/V but allows several optional types to be included. For example, LPCM is the mandatory format for audio, but WMA, AAC, MP3 and many others are optional.