I have a Konka bluray player (kbd-201a) connected to my Sony Bravia tv (older tv) it's connected with the cables from player to tv ... Yellow, Red, White. I am using the media center on the player with a USB drive connected to the bluray player. My problem is that I have both AVI and MP4:files on the USB drive, however the player will play both file types visually and with the audio only on the AVI files, this is frustrating as most of my files are MP4. I don't have a user manual for the bluray player so am unsure what to do? Can anyone help me with this please? Thanks for your help in getting this sorted.