1) Does the Netgear 550 support reading Blu ray movies directly from an external Hard drive connected via USB ?
Rumor has it that there might be a firmware update to allow that but I have no idea of the status. Franky I wouldn't count on it.
2) Is there a netgear version with wireless ? I prefer using a wireless connection if possible
After trying to stream 10GB/hour of 1080P to my old 1st gen Western Digital TV Live over 802.11n (stutter, stop, stutter) I personally prefer hard wired but to answer your question no the netgear does not have built in wireless and you'd need an external
bridge. You might also consider some of the latest powerline networking devices but don't expect a
sustained throughput of more than roughly 10-20% of advertised speeds from either powerline or wireless although they might peak higher.
3) Does the Netgear make external HDs connected via USB available over the network for other devices to see ?
It does but I haven't tested that function.
4)Do either of these mentioned work with Youtube ? I sure would like this to work
At Google's request Youtube was removed from Roku products. The NeoTV550 has
limited and buggy support for youtube. Some resolutions and formats it can play and some it cannot and signing in to your channels doesn't work at all.
No not yet but Roku is always adding channels so maybe someday.
6) Does the Netgear support external HDs greater than 2 TB or does it have that limitation similar to the oppo 93 ?
I have a wired network and servers so I haven't tried it but I think it still has a 2TB limit.
7)Given that I intend on upgrading my receiver (likely to yamaha rx-a2010); Any thoughts on how the sound of the 93 via analog out will compare to hdmi out via the netgear/other streaming device ? From the measurements I see at least it seems the DACs in some of these receivers seem good fairly close to measurements for 93 . Any comments ?
I simply don't know. I'm running audio from my 93 into my Onkyo TX-NR906 via HDMI. As you said the DACs found in modern receivers are pretty good.
Your best bet for technical info on the NeoTV is Netgear's NeoTV
forum. I haven't got deep under the hood because frankly it's done everything I care about and there hasn't been a need but people on the forum have.
You might also look at the newest version of the
Western Digital TV Live (WDTV LIve). I owned the older version that did not support lossless BD audio formats. Supposedly the new version supports Dolby TrueHD pass-through, has built in wireless, and plays Netflix. I have not tested it and do not know if it supports DTS-HD pass-through or 24bit flacks or multichannel flacs but it might be worth researching.
Trying to get 24bit flacs from a server in my home-office to the system in my family room has been a long series of expensive and frustrating experiments. My old 1st generation WDTV happily streamed 16bit flacs but down-sampled 24bit flacs to 16bit and did not pass through BD lossless audio. The Oppo 93 was supposed the solve that problem but it's been badly crippled by the chipset supplier and needs a DLNA server (no access to network shares) capable of serving up 24bit and multichannel flacs and MKVs and the only DLNA server that did 24bit 6 months ago was a Media Monkey beta. After much pain and suffering I built a really nice HTPC which works great but is a pain to use. I finally settled on my 2-box (plus a Blu-Ray player for rentals) solution and I'm very happy. It doesn't not do
everything but it comes close enough for me and is as easy to use as a cable box. The bottom line is that network media playback and streaming are still in their infancy and no single media player does everything yet, and darn few even come close. If you must have a single do everything device then be prepared to sink $500-600+ into a HTPC and playback software and live with the limitations of HTPC keyboards/mice and media playback software.
For me it was a no-brainer and I put 2-box (Roku and Netgear) solutions in both my family room and my bedroom for less than the cost of a single HTPC. I can access my network shares and 24bit audio and don't have to deal with buggy or limited DLNA and I can tie it all into my Harmony remote.