Hello Peter and Andrew
Just thought I would chip in with some feedback on DLNA usage, which I have been deploying since receiving my B2 a couple of months ago. I play the B2 either from the optical output, via a line-level digital receiver, and then into self powered speakers, or via DLNA into a wireless speaker unit - a Bang & Olufsen Beosound 2. Incidentally, because B2 is acting as a server, it is possible if you need such a scenario to play different music simultaneously into the different destinations.
Until the B2 arrived I had not fully appreciated what Paul had told me about DLNA, which is that the receiving device controls the output. So in my case the B&O app on my phone tells the B2 to play whatever music I select on it, the B2 app does not tell the B&O speaker what to play. Which is a shame, because the B2 app is so much better, particularly when set to play randomly from the whole collection of 8000 or so tracks. Like many others here, we have rediscovered lots of overlooked music this way, each new song being displayed with its artwork and other information on the phone. A truly great little app!
Sadly, the B&O app does its job, sees the complete collection, will show 'recently added' albums, and will play anything selected, but when set to random shuffle it seems to choose the same 100 or so tracks in the same order every time I play this way, and when it comes to the end of the last track just starts again back at the beginning. There seems to be some Amazon-style algorithm operating too - as in 'you were interested in this item, so we thought you would like this', so the musical style played appears to be all in a similar vein. The Brennan app does thankfully seem to use a proper pseudo-random approach.
I don't know whether the shortcoming is in the Bang & Olufsen app, or an inevitable result of the NAS principle, but it would be really good if the B2 app could directly control its output into a network connected device.
I would be interested in hearing other users' experience of playing via DLNA
regards
David Wheeler