Hi Jim,
I did a lot more research on this problem, and I understand it now. The feature is missing from MC15 beta. What is needed is the ability to pass the PC file system to the DLNA client. Then it will work exactly the way I want it to. I have tried a few other DLNA servers, and have found that they have this feature. You can select either the default which passes directory information to the DLNA client as it sees fit (includes internet streams, generally sorts from whatever was imported as a single mass, etc.), or you can switch over to "File System" which passes over the directory tree as you have it configured on your DLNA server. That is what I would like from MC15.
Right now, DLNA is working with MC15, but I see a sea of hundreds of vid files. I can change the sort order, but I still get a list too long to properly deal with. What I would like is to maintain my folder structure as I already have it on my PC. Then I could just pick from the folder, and watch it on the PS3. With this feature in place, I don't even have to tag anything, I just navigate the folder tree exactly as I do on my PC.
Thanks,
DD.