Thank you all for starting and participating in this discussion. I would be interested in using one of these methods to make backup copies of my multi-channel SACDs. I'm not too concerned about the issue of the copies being "imperfect" due to conversions that may occur at various points in the process. But something else is concerning me - the details of the software operations needed to get to the endpoint, that is storing the 5.1 channel audio in a file on a computer. Maybe some of you who have more experience using these types of professional audio tools can help me think through this.
So, to be more specific, I could get a Blackmagic Design Intensity Shuttle USB 3.0 (http://www.blackmagicdesign.com/products/intensity
), and also an HDMI splitter that "strips" HDCP, maybe this (http://www.amazon.com/Etekcity-Amplified-splitter-swither-XBOX360/dp/B008B7ARRK/
) (let's not even worry for now whether the splitter will do the needed "stripping"). Then I could connect my HDMI-capable SACD player (such as Oppo BDP-80) to the HDMI splitter with an HDMI cable, connect the HDMI splitter to the Intensity Shuttle USB 3.0 with another HDMI cable, and connect the Intensity Shuttle to my Dell / Windows 7 64-bit PC with a USB cable. Then turn all devices on, install the control software for the Intensity Shuttle USB 3.0 on the PC, and load a SACD in the Oppo player. And then what ?
I don't see a specific option in the Intensity Shuttle users manual (http://www.blackmagicdesign.com/media/5826058/Desktop_Video_Manual_July_2013.pdf
) that looks like "read 5.1 channel PCM audio content that is sent to the HDMI input of the device, and store the 5.1 channel audio in a (WAV, FLAC, etc) file". Maybe the manual is a bit sketchy, and everything becomes more clear once the user starts to set up the process (the manual does have a section on "Capturing Audio and Video Files").
And I have the same general question about how to accomplish the task of storing the multichannel audio in a file, for a device with a multichannel analog interface such as the M-Audio Delta 1010 (http://www.m-audio.com/products/en_us/Delta1010.html