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Re: Multiclip troubles - continually dropping frames

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Re: Multiclip troubles - continually dropping frames
by Carl Sundermann on Aug 23, 2009 at 8:02:30 pm

[Jeremy Garchow] "So, one stream of ProRes @ 720p59.94 with 2 channels of 24bit audio will run you 21MB/sec according to the AJA Data Rate calculator. Multiply that by 3, that's 63MB/sec. Add more audio, overhead and processing, you are very close to maxing out that drive, especially as it fills up and fragments. "

Very helpful! So a couple follow up questions...

FCP says my clips are approx 16 MB/Sec. That's approx 48 MB/Sec. Even as my drive gets full, could it really not be able to keep up with 48 MB/Sec? Even when I lower the frame rate to quarter?

Is there a way to test what speed my drives can handle?

Currently my media drive has over 200 GB free on a 750 GB drive. However, I've also had this problem after I've just cleaned off that drive. That said, I did not ERASE it, just deleted items. Should I use the disk utility "ERASE" function? Is that the preferred method to clear the drive? If so, and since I haven't ever done this, it's making sense that this could be contributing to my issues...

When striping... Is the easiest way to do this using Disk Utility? (of course assuming I back up all data, etc...)



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