Compressor 4.1 Slow Export - Unique Issue
[Using a MacBook Pro, 2.7 GHz Intel Core i7 (4 cores) - 16GB memory]
-------
Hey guys!
I'm on a job now, ripping dozens of archival 4:3 DVDs and up-rezzing them to 1080/25.
The footage is arriving in Compressor as 640x480 h.264 MP4s at 25fps - they need to be delivered as 1920x1080 ProRes 422 MOVs. Here are my video settings:
Video Properties
Frame size: 1920 - 1080
Pixel Aspect Ratio: Square
Frame rate: Automatic
Field Order: Progressive
[X] Add clean aperture information
Quicktime settings: Apple ProRes 422
Cropping & Padding
Cropping: 0-0-0-0
Padding: Preserve Source Aspect Ratio -- Top: 0 - Bottom: 0 - Left: 240 - Right: 240
Quality
Resize Filter: Better
Retiming Quality: Fast
[_] Adaptive Details
Anti-aliasing level: 0
Details level: 0
Here's where it becomes a problem that I can't find a solution for...
A video that was 38 mins long took 1 hour and 15 minutes to finish. Acceptable.
A video that was 1:49 (109 mins) long took 9 hours and 17 minutes to finish.
Same type of video, same export settings, but for some reason, the export time multiplies drastically when the video is longer. I'm on a deadline, and if I kept exporting back-to-back at this rate, I'd be finishing up my footage over a month from now.
I understand the up-rezzing is going to eat up time, but what accounts for such a dramatic slowdown when the file is over an hour long?
Is there a way I can get the longer videos to export at the rate of the first video I referenced (about 0.5x - rather than 0.19x)?
Any help (advice/link to a thread I missed with this same question) is MUCH appreciated! Starting to worry about this now :/
Compressor, OS X Mavericks (10.9.2)