for bluetooth i have dr-bt50. they are good, but not great. the bluetooth spec for audio reencodes the audio to somewhere between 96 kbps to 512 Kbps. I read somewhere that the sony goes for 128kbit, but i think it's probably higher than that. even so, you're still reencoding as you stream to the headphones, so there is an audible difference if i use my sennheisers or plug it into my staxx preamp a whole new world opens up. before splashing out on nero, give winmenc a try(in 'ipod' mode). it's free and i've always found that with a bit of patience i can get it to support Everything! http://winmenc.blogspot.com/ I would add that i bought mine in SF also, they had hundreds of these in stock, i guess they think they'll sell well!