MiniDisc : Connect Digital or Analog for best transfer?

I'm not the Smithsonian or BBC, but I still want to preserve some
demo tracks from a stereo Minidisc for the future.
That is, if need to tweak the track later in 2010, be sure now in 2006,
to have digitized it well enough.
If connect digital via optical cable then Audio Interface and Logic must
be set to same sample rate as the MD deck, 44.100.
If connect analog then I can set any sample rate that gives more
headroom for manipulation of the audio for a later time.
The Audio interface and Logic can do 24bit, 96 or even 192kHz.
All I'll probably do before bouncing is some volume adjustments
and when bouncing do EQ, Multipres, AdLiter, (the stock Final Pop Master
Inserts) but I want to digitize with enough dynamic range so to not
loose anything if / when tweaking the digitizes stuff in the future.
Advice Please?

Go optical. That way you don't have to go through an extra step of D/A to A/D. I have done this myself with my minidisc player and couldn't be happier!
Good Luck!
X

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Connect digital analog ground

Greetings.
I have a mixed-signal Multisim design which I have forward annotated to Ultiboard. My Multisim circuits use 2 different grounds - net 0 and net DGND. For simplicity, I would like to prototype a first version of the boards with the grounds logically connected, so I don't need to worry about ground loops being created by the fact that I'm using separate digital and analog lab supplies.
I have checked the box in Multisim under "Sheet Properties -> PCB -> Connect digital ground to analog ground." I have transferred my design to Ultiboard 11 and specified a 4 layer board. Layer 3 is my ground plane, with a large copper area connected to Net 0. While placing components and vias on my board, I'm noticing that the thru-holes and vias I define as connected to Net 0 appear as I expect - with the "+" thermal relief on layer 3. However, vias logically connected to DGND are appearing on layer 3 with large areas of copper removed (I've specified 12 mils clearance on each copper layer). If I change the copper area on layer 3 to net DGND, instead of net 0, I notice the reverse situation. All of my analog ground vias and thru-holes have copper cleared away, and the DGND vias are now filled.
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Thank you for your reply, Mark.
I was going to upload my Multisim project file, but then realized a lot of my components are now in my Corporate Database, so I can keep vendor and manufacturer-specific part numberings and inventory quantities all together in the same place. Instead, I took some screenshots and created a .pdf file. I uploaded the pdf file to transferbigfiles.com, here.
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Finally, I went back to Multisim and tried combining the nets "GND" and "0" automatically by selecting the check box in Sheet Properties. Unfortunately, when I forward annotate, Ultiboard detects no changes.
Following are 2 relevant sections of my .ewnet file I opened in a text editor, after my latest changes.
(net "0"
(trackwidth "6.00000000e+000")
(trackwidth_max "3.93700787e+002")
(trackwidth_min "6.00000000e+000")
(clearance_to_trace "6.00000000e+000")
(clearance_to_pad "6.00000000e+000")
(clearance_to_via "6.00000000e+000")
(clearance_to_copper "6.00000000e+000")
(routing_layer "1111")
(net_GUID "{8704ACB4-9808-4086-9C22-02206D379B13}")
(net "GND"
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Message Edited by pcurt on 02-22-2010 10:48 AM

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Message Edited by pBerg on 03-10-2008 04:35 PM
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jschell wrote:
In summary you are moving data from one database to another. True
You only discussed flow one way. Well the process is meant to be bi-directional. Basically what I envision would to have something like:
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MiniDisc : Connect Digital or Analog for best transfer?

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