I couldn't get DoP64 over SPDIF, but I only gave it one shot and switched to usb. I get DSD via DoP alright, no problem there. I see no point in using native as there isn't any DSD512 anyway. Further comparison between DSD and CD: I listened to Mozart's violin sonata no. 28 by Podger/Cooper. I use foobar's "random play" between CD and DSD versions and think I can tell which is which. The DSD version sounds more "transparent". Now I'm talking like an audiophile.