.DV Corruption on network copy at DVinfo.net
DV Info Net

Go Back   DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Open DV Discussion
For topics which don't fit into any of the other categories.

Reply
 
Thread Tools Search this Thread
Old July 3rd, 2008, 09:43 PM   #1
Major Player
 
Join Date: Dec 2006
Location: Auckland, New Zealand
Posts: 444
.DV Corruption on network copy

Hey guys - I've got a really weird problem going on and I am just trying to figure out if anyone else has encountered anything similiar.

I am trying to copy raw .DV stream files across a network to an external RAID 0 - 7 disk raid array in an enterprise level Compaq RAID enclosure. The raid is running 147gig Ultra 320 drives.

After the copy if I load the raw .DV steam in Quicktime what appears like codec errors appear, noise in the audio and pink/multicoloured dots in the video. This is in the actual new copy of the file (if I copy it back to the original place it remains).

This happens even though I am using AASync to copy, which does a checksum, meaning that the files should be EXACTLY the same.

Is this something to do with Raw DV streams being very flaky? (doesn't make much sense to me as I am copying the original to Hard drive from a data DVD it was delivered on - and in this case it copies fine)

Or do you suspect my Raid Array has disk errors and is causing some sort of corruption? (A possibility)

Or is it a function of copying RAW DV files across the network possibly?
Craig Parkes is offline   Reply With Quote
Old July 4th, 2008, 05:18 AM   #2
Major Player
 
Join Date: Dec 2006
Location: Auckland, New Zealand
Posts: 444
Ok - having done some more testing (i.e copying same DV file onto other RAID 5 arrays in the same manner) I can come to the conclusion that something is definitely up with my RAID 0 Array and I probably need to disassemble it and get the disks checks (no issue as nothing important is on there at the moment).

This experience has taught me two things - RAIDS are relatively tricky to diagnose disk problems with, hence the inherent danger of RAID 0, and that a good way may be to copy across a raw .DV file and look for visible corruption, as more robust file formats seem to survive the transfer ok.
Craig Parkes is offline   Reply
Reply

DV Info Net refers all where-to-buy and where-to-rent questions exclusively to these trusted full line dealers and rental houses...

B&H Photo Video
(866) 521-7381
New York, NY USA

Scan Computers Int. Ltd.
+44 0871-472-4747
Bolton, Lancashire UK


DV Info Net also encourages you to support local businesses and buy from an authorized dealer in your neighborhood.
  You are here: DV Info Net > The Tools of DV and HD Production > Open DV Discussion

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



All times are GMT -6. The time now is 08:50 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2024 The Digital Video Information Network