I have many ISOS with Musicvideos i do buy.
All do have 48 Khz LPCM 192 Kbit Bitrates as they are sold at VJ Sites like Mixmash and Promo Only.
On each disc there are 15 to 30 Tracks included.
I experienced now playing them in Firm 1.3 and 1.4 that the Preview Window plays Audio and after i play the ISO
only the first Track is played with Audio if i chapter skip to the next Videos.
If i then Pause and forward and backward and Pause again i then get Audio.
If i skip to next chapter ( Video) Audio is off again.
This is not happening using HDMI Output ( Stereo / Digital)
The DVDs are made with imageburn simple Create ISO and they are DVD5 DVDs.
On the PC they do all play flawless.