How do I go about doing this from 25 to 24 for Blu-ray please?
It’s a concert film, so screwing with the audio is not an option – too many artefacts from time stretching & pitch shifting, so what IO was considering was a straight 25-24 conversion that extends the run time, and shrinking the footage back to the right length using something like Twixtor – but 4.1% is a huge amount.
The worst of this is that the film crew were asked to shoot at 24, yet refused saying ‘we always fix it in post’ which is utter BS of course.