For me, the player is less suitable. The playback of Blu-Ray's running smoothly. Also, the device is fairly quiet. However, the online feature annoys me. If you are not able to connect the player to a LAN cable, you need a suitable Sony WLAN stick. I find that ever annoying as this is much more expensive than a conventional WLAN stick. If you now have a suitable stick notice that there is constant dropouts during video transmission in wireless. My other player makes wireless no problem! So I can rule out ever, that it is at the reception. Here the software or the device itself seems to have a weakness. The ko criterion is, however, that not all video and music formats can be played. I should have know it themselves. Unfortunately Sony devices do not support the current file formats. If you only mp3, standard avi or mpeg plays one has no problems. In other formats they say "defective file or unsupported". Also, it has not been able to control my device with a remote control all-in-one. All devices can be controlled, but not the Sony-BR. Will now try a little further, but it looks like that I replace the device with another player.