Hi,
The original firmware 2.0 does not have the proper alpha-numeric file order in the media server. This was corrected in the 2.02 beta firmware, but Dlink has removed this from there site due to several issues including the fact that once you install 2.02, you cannot return to any of the other firmwares. I am sure they are working on it, and will have another beta but, they are notorious for slow.........updates. You might just try using Network shares if possible if that works with your popcorn hour. Good luck.