FCCGrant,
Sorry for the delay on the response.
PVohra,
In regards to how & where I store the files, here it is... On one hard drive I have nothing but video related files. They are in folder such as "Movies AVI", "Movies TS", "TV Shows" (With sub-directories of each program and a sub-directory for each season).
On the other hard drive I store music in a similar fashion. With folders named "Albums", "Soundtracks", "Classical" etc...
On both hard drives (1TB each), and using the DNS-321 the files shows up on my DSM-520 in alphabetical order.
IF you are accessing the files through the USB Port on the DSM-520 I have noticed that files are not shown alphabetical in order.
Just a side note: Having a massive amount of albums is really time consuming to go to the one you want. Sometimes, when there is other traffic on the network, the media player locks up when changing pages while looking at the large directory.