At the moment I don't have a 8200CD.
I had it for a while, but unfortunately found it lacking in some aspects (e.g. no headphone amp) and I don't really need a CD-player. Feature-wise the MDAC is a much better fit. I have been using the USB input (lossless audio files with Linux and OS X). Changing filters doesn't make it better. Otherwise the MDAC is very good and I would like to keep it, but I don't know if I can...
Setup haven't changed since I tried the 8200CD and difference was as I described before. I've considered changing to the 8200CD, but I have to compare first the 8200CD with MDAC in my setup. However, that is the last resort. The MDAC would have been a much better fit.
I think somehow the DacMagic and MDAC had very similar sound signatures (I don't know if I'm saying it right..), both had kinda annoying highs as the 8200CD was more enjoyable (this was tested with another setup). As I said before, the MDAC was still better than the DacMagic.
Could it have something to do with the PSU? The DacMagic has a wall wart PSU too...
My setup:
MDAC - Linkwitz ASP - Power amp - Linkwitz Orion