Along with wif capabilities it can play mkv with ntfs format so no 4gb file restrictions and of course it is a bluray player good review of it here http://www.techradar.com/reviews/audio-visual/blu-ray-players/lg-bd390-blu-ray-player-631686/review?artc_pg=1
LG BD 390 Network Blu-ray Disc Player
The receiver is compliant with the higher bandwidth specification of 802.11n (as well as 802.11b/g). This means that, should you have a suitable wireless router, not only can you access such features as the aforementioned BD-Live, YouTube and firmware updates with the same speed as a wired LAN connection, but you can also stream HD video from a PC.
This deck also comes with full DLNA (Digital Living Network Alliance) certification, and it's got the badge to prove it. In essence, it can stream music, pictures and video stored on a computer or NAS drive straight to your screen. And thanks to the 'n' part of the 802.11n compatibility, it does so smoothly and extremely quickly (at the touch of a button)