Article Focus: It's late, you're running late, and you can't figure out why your sequence isn't playing in real time. Fortunately, Creative Cow leader and Final Cut Pro expert Walter Biscardi is here to help. You know that something's wrong, Walter knows what, and he tells you how to fix it here.
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I honestly never HDV material natively. We convert all HDV to DVCPro HD or ProRes for editing via our Kona 3's.
HDV does have to conform for playback due to it's nature as a long GOP MPEG-2 format. My guess is that because you're mixing various formats in the same timeline, it's causing FCP to have to conform everything that might get played into HDV before playback will start.
But again, we never edit HDV natively so I can't tell you for certain.
I'm not new but this helped clarify several things. Here's a question for you though regarding FCP 6. I have recently been working in an HDV sequence with several sources clips of different formats. Many times, not always, when I go to render an effect, instead of the 'writing video' blue rendering bars, I will sometimes get a 'conforming HDV' bar instead. Even if all effects are already rendered, and I hit command/R (just to be sure), the 'conforming HDV' render bar still comes up. I never experienced this situation until this project.
Could you explain.-
Thanks, Steve