by franz » Wed Aug 28, 2013 12:39 pm
you would need an external capture card, quicktime compliant,
susch as a matrox MXO2 (untested and known for bad drivers)
or a Decklink Intensity Extreme or Shuttle (using Thunderbolt) (untested too, should be working).
Currently tested using a PCI-express Intensity Pro in a MacPro (working)