[John Knoxville]

Thank you John, for the link to this app. I have a 2008 mac pro with mavericks on it, and I noticed really bad tearing while previewing video with in FCP 7. After searching I finally found this thread. I used the quartzsimple app with the beamsync feature. And it works very well, there is slight tear on occasion, but it 90% better, and actually usable now. I can confirm that this works well on OS Mavericks.

[John Knoxville]

Mac Pro 4,1
2 x Quadcore 2.93
16GB 1066 Mhz
Osx 10.7.4

I am having almost the same exact problem. I just got an Intensity Pro, Installed the latest software and drivers. When I try to capture in final cut using the blackmagic dv presets. I get video perfectly, but no audio is capturing or even metered. I am capture vhs tapes from a pro vcr deck.

I get audio when ever I use Media Express, but the video looks janky through it, so I rather use FCP.

Has anybody figured out a solution? Ive sent a email to blackmagic, lets see if they respond.