Dropped frames on some projects not on others???

[David Battistella]

Was the twenty miinute project captured or copied. If copied was it copied into the FCP media folder or a folder that you created to copy into.

FCP likes to manage it’s own media.

David

I can’t believe it’s not butter!

[Jeremy Garchow]

This would seem to me that you have some sort of setting mismatched somewhere, whether it was capture settings, your timeline settings or a wicked combo of the two.

DV50 should run on just about anything, excluding thumb drives.

Jeremy

———–
G5 Dual 2Ghz <> 4GB RAM <> FCP 5.04 <> Kona 2
ATTO 42XS <> Huge Systems 4105 Fibre
OS 10.4.2 <> QT 7.0.3

[Christopher Tay]

If you copy the problematic timeline and paste it into the other two projects that have no problems, do you still encounter the drop frame ?

We’ve noticed that at times a project can end up corrupted and start behaving weirdly.

-chrispy

[Craig Meadows]

No the project wasn’t copied, digitized like the others from tape. Pretty sure all the settings are accurate. Plus have the latest Kona and softraid drivers.

As an experiment I did mixdown/export the problematic 20 min piece as a single dv50 file and imported it back in to the same project and dropped it into a new dv50 sequence…and as a single clip it played back just fine…no dropped frames. The original is 3 video tracks and 6 audio tracks.

We also have a few 30-sec projects on this system in 8-bit uncompressed SD and they have exhibited dropped frames as well, just not so noticeable in 30-sec spurts…I thought it was due to being bigger uncompressed files. I called AJA and and was pretty much told that no home-brew multi-drive SATA storage solution has been approved for use with the the Kona 2….although like someone said I would surely think it should work fine for dv50.

Our other G Kona-2 system has a 4-sata drive internal disk raid system and works great in all SD flavors.

The drives in the system with issues are Maxtor SATA-1, 7200rpm, 16mb buffer, 250gb drives….maybe I just got some duds or persnickity gremlins in these drives despite the other long format projects playing back fine.

[Bob Zelin]

Hi Craig –
I have not been following your thread carefully, but there are some SATA drives recently that have had problems, like the 400 Gig Hitachi SATA drives. You should NEVER use only one SATA drive at a time, and always have at least 2 SATA drives stripped together to get reliable playback for 8 and 10 bit uncompressed SD, and DVCPro50. But most important, RUN AJA KONA SYSTEM TEST, and look at the data rates you get back. You should be able to get 80 – 120mb/sec with 2 SATA drives. If you get 6 – 12 mb/sec, you have dud SATA drives, as I had with the 400 gig Hitachi’s.

Bob Zelin