Slow playback on Panasonic Blu-Ray Player as DLNA Client

[WAT]

I have 2 Panasonic Blu-Ray players, 1 wired, 1 wireless. Playback of music is slow on both players, say 1/2 speed, when using Asset. Twonky & Plex both work fine. Asset does work ok on my OPPO BDP-93. Any ideas?

[AMWUK]

This is my first EVER entry into the world of Forum to please excuse my clunky approach!
I have a rather obscure question - I am trying to add music to a video in MotionSD supplied with a panasonic SD camera. The only audio format that appear to be supported is .sbg
Anyone got any idea...