DVD ISO Sound issues on vix solo 1.1 image

[Cougar]

Hi Guys
I'm using vix solo image 1.1.
Tried to play some DVD iso files from an external hard drive, and found that they played ok until you try and skip forward or backwards. The sound stops playing completely.
Anyone else having this problem?

 

[silverfox0786]

the official codecs are still a bit buggy for some file types