Losing the Sound after editing VOB'S

[ironclaw]

Hi, can anyone help please? I use Video Studio 7 SE DVD, and I am trying to edit VOB's recorded on my DVD recorder (to cut out adverts, trim start and ends, etc). Firstly, when I tried to import straight into VS 7 I got the message "Unable to open file".... File Format Mismatch (16803:1:3).
After searching for help on this Forum, I downloaded an Extension Changer, and changed the file from a VOB to an MPG.
VS 7 now loads the file, and edits and saves the video sections I want to keep with no problems, but while editing, I noticed the sound from the file had "disappeared"! Can anyone suggest where the problem is?

[lancecarr]

Check the properties of the MPEGs in VS. Look for the audio properties in particular, if it is Dolby (previously known as AC-3) you are out of luck. VS7 does not support Dolby. Dolby support was introduced through a separate plugin for VS8 and became fully supported in VS9.

[Ken Berry]

I don't know if it will work with VS7, though in theory there is no reason why it should not. But there is a free AC-3 decoding filter available at http://www.videohelp.com/tools?toolsear ... MIT=Search Certainly, people using VS8 seemed to use it a lot if they did not buy the relatively expensive Ulead AC-3 plug-in. The only limitation on this free one was that it would decode, but not re-encode, AC-3. However, the current version of this freeware filter would appear now to encode (though I have not tested this). Anyway, if you use it to decode, and then re-encode to one of the other two audio DVD formats (LPCM or mpeg-layer 2 audio), then you should be OK. And if not, then you could always upgrade to VS9!

[ironclaw]

Thanks for everyone's help on this, I'll let you know how I get on....