Sorry, the above issue thread is getting long, so I haven't read every post, but here's a bit of my experience.
I have the HAP-1ZES which I believe is very close functionally, so I want to point out that the software is entirely optional, mostly to automagically transfer new additions. Once I realized that, I have never used it since.
The Sony HAP will (eventually) mount as a standard network drive (at least in OS X), and if you have your music organized on your existing HD in a halfway reasonable fashion (regardless of player software), you can then simply drag & drop folders, subfolders and/or files over on the HAP network drive, maybe starting with your favourites rather than everything at once. This transfer is the first part, then once the files are transferred, the HAP will analyze the files on the internal HD and organize & add them to the internal database.
Depending on the amount (both in size & # of files) the whole process can take a loooooooooong time.I have tried & verified every possible connection and the interfaces do not come remotely close to their theoretical speeds, even with an internal SSD mod. I have a long-ish post planned for the whole HAP experience but am too busy these days. Just want to clarify that despite the above shortcomings, once everything is settled in, the experience and SQ are really great (and I don't say this lightly if you read some of my other posts)
Putting aside the transfer / folders issue. ( Which I'm still very confused by, for reasons previously explained. ) I'm really disappointed with the sound experience so far. I finally decided to buy the HAP-S1, because I was so impressed with my Hi Res Walkman F886 / Fiio E12, combo, especially after the recent firmware update, i.e. DSD capable playback.
I'd converted flac files 44.1 to DSD 2.8MHz. I was blown away by the sonic quality. I've never heard by portable music sounding so good !! So I bought the HAP-S1, thinking it would replicate the sound signature.....and of course, giving me more storage space.
Tonight, I've transferred one album, that's flac 44.1 & also a conversion to DSD 2.8MHz. I am hugely disappointed. ( at this point. ) It's not a patch, on my Walkman / PHA combo ! The flac 44.1 / 16bit tracks sound better than the DSD conversion.
The sound signature to me lacks warmth, too much treble & tinny sounding. ( I don't have high end equipment, but even so, was expecting a far better sonic experience.....especially as I have read such positive views.
It's early days, but unless something improves, I can see that I might return the player. I can't understand why a £300 + portable combo, sounds so much better than a player that costs £800 ???