Thanks Steve.
Really appreciate you taking more time to look into this. Interestingly I haven't noticed the WD TV Live having problems with the audio streams I've thrown at it (mostly TrueHD & DTS I think). Not sure if it makes a difference but I'm passing these straight through over HDMI and allowing my Receiver to sort them out. I'll try a few more titles to confirm.
I played around with a few different DLNA servers and had some success but can't recall which combinations worked – I'll try and confirm tonight, starting with the native W7 DLNA server. All of the other servers I tried seem to suffer from the same problem though: they only give a "file" view of my movies. This is ugly but just about works for films where the movie is all in a single large file. However with films where there’s a file per chapter (e.g. Iron Man 2) it's completely unworkable: you end up having to play the movie one chapter at a time. JRiver seems to be smarter so I'm hoping it will do better, if I can get it to actually play.
I'm certain that putting all of my movies into MKV containers would work. However having ripped quite a few movies into folders now (which work great with the MC front-end) I'm loathe to do this. I'm not short of disk and I just hate the idea of throwing all that information away.
EDIT: I've just re-checked and if I select, say, the main movie file from Avatar while using the MS W7 DLNA server it plays perfectly with a DTS 5.1 audio stream. Using JRiver DLNA I get an unsupported message, unless I tell it to transcode.
Regards,
Andy