I could not wait any longer and so I installed the Euro version of DL3 on my 3910 connected to the 3805. I found the software on the AVS Forum site. The link to the files appears to be not funtioning, but there are AVS forum members who might send you the files if you are interested. Baiscally, you you have to create 3 CD's with the upgrade programs on them and install them in sequence. Instructions are included and it was relativly easy to do. Now, I can play SACD and DVD-Audio via the single Denon Link cable. My 3910 came with a cable (it appears to be a standard cat5 network cable) and it worked (sounds great) with SACD and no issues. I am using the DL3 connection for all digital audio and it is great. I must admit, I was a little nervous about loading this "bootleg" copy of the DL3, but luckily it came directly from Denon Europe and worked great.