how "lossy" is DV .AVI file format?

TrekNW wrote on 11/27/2003, 12:08 PM
I'v just finished capturing and transfering over 12 hours of family 8mm home videos. I did a first pass rough edit to create scenes and remove the obvious. Now the real work begins ;-)

I'd like to just render these back to DV and save them as AVI files on a dedicated HDD, but I'm concerned about compromising the quality.

Should I be woried about this? The image quality is not that great to begin with since I'm working with 40+ year old film.

thanks,
Tim

Comments

TheHappyFriar wrote on 11/27/2003, 12:11 PM
The Sonic Foundry/Sony DV codc is really good, so you shouldn't need to worry about loss. But, you could capture uncompresed. That will take about 4x as much space as DV, but it isn't lossy at all.

Former user wrote on 11/27/2003, 12:55 PM
If you make a DV AVI from a DV capture without any effects, there is NO quality loss. Vegas makes a file copy without any rendering.

If you add effects, it will render that and you use a little quality, but it is negligible.

Dave T2
johnmeyer wrote on 11/28/2003, 6:56 PM
The big loss, with any DV codec, is going to 4:1:1 color space. In subsequent re-renders, using the Vegas DV codec, you really don't need to worry much about degradation.
burchis wrote on 11/29/2003, 8:14 AM
DaveT2

When you add effects, is there quality loss with the entire file or just with the effects/transistion areas?
johnmeyer wrote on 11/29/2003, 10:20 AM
When you add effects, is there quality loss with the entire file or just with the effects/transistion areas?

Just the effects/transistion areas.