[MacDV] Audio sync

[Bill Calamita]

>> 
>> I am making a dvd with idvd from a project in imovie. It contains many
>> stills and some video. Everything plays as it should in imovie but when
>> I burn it with idvd the audio from the clips are out of sync by the end
>> of the project. It is about a 15 minute presentation that has about 3 -
>> 1 minute video clips. One at the beginning, one in the middle and one
>> at the end. The first one is alright, the second one is slightly out
>> and the third one is way off. Any ideas as to the problem?
> 
> 
> IIRC, I believe that the only way to fix this, is to open the clip in
> quicktime pro, extract the audio, upsample the audio and then replace the 12
> bit audio with the upsample 16 bit audio.
> 
How does one "upsample" and what program do you do this with?