Disc Image Quality at DVinfo.net

Go Back   DV Info Net > Apple / Mac Post Production Solutions > Final Cut Suite

Final Cut Suite
Discussing the editing of all formats with FCS, FCP, FCE


Reply
 
Thread Tools Search this Thread
Old August 24th, 2005, 07:30 AM   #1
Major Player
 
Join Date: Mar 2004
Location: Roanoke, VA
Posts: 796
Disc Image Quality

My understanding of a disc image is that it is a copy of a disc and will remain in tact just as a physical disc will. The reason I post this message is because my boss thinks that the disc image we have saved of our demo reel, recently started losing quality and having interlacing problems when burned to DVD. Is this possible? I think he is just noticing artifacts and other things that he didn't notice before.

We archive all of our DVD SP 3 projects for clients this way. If a disc image can lose quality (which I think impossible) we need to archive in a different way.

TIA, Dave
__________________
Dave Perry Cinematographer LLC
Director of Photography Editor Digital Film Production 540.915.2752 daveperry.net
Dave Perry is offline   Reply With Quote
Old August 24th, 2005, 06:03 PM   #2
Major Player
 
Join Date: Jun 2002
Location: Venice, CA
Posts: 346
If the disc image is saved on a Hard Drive, the likelyhood of it causing the video quality to degrade is minimal. But it is "technically" possible to lose bits of data over time as blocks on the Hard Drive go bad. But it most likely would be so minimal and so spaced out that it wouldn't be visible, you would have to be having a major Hard Drive failure.

If the disc image is saved on a DVD-ROM, then it is much more likely that parts of the data are being lost or that the disc has become scratched.

In the end, you are probably right, and simply having watched it so many times your boss is now noticing the artifacts.
Mark Sloan is offline   Reply With Quote
Old August 24th, 2005, 06:20 PM   #3
Wrangler
 
Join Date: Dec 2002
Location: Mays Landing, NJ
Posts: 11,542
The only explanation I can think of is that you are somehow recompressing the data and losing quality that way. I doubt that's happening if an image of the data is just getting copied to the DVD, but I don't know much about how DVD burning software works.
Boyd Ostroff 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...

Professional Video
(800) 833-4801
Portland, OR

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

Z.G.C.
(973) 335-4460
Mountain Lakes, NJ

Abel Cine Tech
(888) 700-4416
N.Y. NY & L.A. CA

Precision Camera
(800) 677-1023
Austin, TX

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 > Apple / Mac Post Production Solutions > Final Cut Suite

Thread Tools Search this Thread
Search this Thread:

Advanced Search

 



Google
 

All times are GMT -6. The time now is 08:31 AM.


DV Info Net -- Real Names, Real People, Real Info!
1998-2017 The Digital Video Information Network