I'm running on an iMac 3.06 GHz Intel Core i3 with 16 gb of memory.
I had previously been using two daisy chained Lacie external hard drives.
Having decided that I probably need more memory for this project that I'm
editing in FCPX, I purchased a Western Digital My Book 2tb external hard drive.
I have it daisy-chained to one of the Lacie drives (the other I put away) and
ever since then, all the clips in the timeline play with skipped frames or lagging.
I tried playing a clip from the LaCie drive as a stand alone and it did the same thing.
How are the external drives connected? They must be Firewire 800 or faster.
Is the WD Drive Formatted 'Mac OS Extended'? (Journaling is not required for video drives).
Daisychaining the drives isn't helping, particularly if the connection is slow.
It does sound like it could be a throughput problem. In addition to following the above advice, download the AJA systems test and run the speed test on the WD drive at the resolution you are working with.
I did the aJa systems test and it gave me
Frame Size Sweep
684.0 24.4 19.4
812.0 24.2 22.9
912.0 24.3 21.1
1080.0 19.2 24.1
1800.0 24.3 25.9
2400.0 19.7 26.5
4052.0 20.8 25.1
5400.0 20.4 24.5
8100.0 22.7 24.6
My project properties are
Default Event : Born (project name)
1440x1080 I 29.97i
I hooked up the Western Digital dirve directly to my iMac via 800 FireWire cable, and daisy chained the 500 gigabyte LaCie drive to it.
It's better, less stutter, but it's still not playing smoothly.
Again...before, when just using two LaCie drives, I NEVER had an issue.
Should I wipe the drive and reformat it?
Thanks again you all!
Well, some other thread here pointed to drivers for WD disks.. I think it's strange for a FireWire drive, but they do provide them.. Have you installed those, or?
And what kind is it? There seem to be a huge selection of WD My Book drives..
The other neat app to try is the one from Blackmagic, this application tells you what video specs you can, read and write, not just Mbs, rather neat.
This is a screen grab that it saves showing the details of my Pegasus 12TB Thunderbolt drive, note how it lasts all the different video formats and whether the drive is capbable of handling them, the RHS panel shows how many frames per second the drive can read/write, helping to assess how many streams you are able to playback at once, as is the case for multicam editing.
Thanks for the help folks....still having issue with all of this.
Any more ideas?
I hooked up the WD drive directly to my computer and still there's a lag.
Again, none of this was happening before....my computer doesn't even see my HV20 anymore.
Jacob suggested there are drivers available for WD hard drives - did you investigate that possibility?
What speed is the hard drive (RPM) it should be 7000 or more.
Have you tried using a different FW 800 cable?
Have you done the AJA speed test with your LaCie drive? (For comparison).