I bought this device carefully because it had DLNA, MKV and XVID/DIVx support as most of my media were, but its also a bluray player (most media players are close to the same price as BD player).
Blurays played fast and fine, no issues here.
DLNA, its meant to be a standard - but through DLNA the only videos playable where MPEG, not MP4 and you can forget AVIs as well.
the only way to access my NAS drive full of various videos was to add it as a network drive in the bluray player's Network settings. Any more than 3-5 files, and the system freezes and this is wired via ethernet to my router. It only supports 100Mb so gigabit improvement is out of the question.
The freeze leads to a complete crash (remote only responds to ON/OFF). In the end I am returning it back for a full refund, just very disappointed as I paid extra than a standard BD player for the networking features.
It did however play anything I threw at it in network drive mode (with limited files), which is good!
then there's the viera connect - very slow and chugs a lot, could do with some major optimisation either by coding or the hardware itself (more RAM or better GPU?)
By the way all of this was on the latest firmware (1.49)
Got a samsung E6100 (Similar price) and it is SUPERB in every sense, especially networking wise