Improved HD Format for Camcorders - Gizmodo Comments

Improved HD Format for Camcorders

mook24 — Fri, 27 Oct 2006 10:58:08 EDT

I liked a post I read on another forum about someone not liking do "digitize" off of DV tape and the reply was "you don't have to digitize, it's already digital". Made me laugh.

mook24

Improved HD Format for Camcorders

UnreaL — Fri, 12 May 2006 04:18:47 EDT

DV (and D8, for that matter) camcorders use a very editing-friendly mildly lossy format which stores each frame separately from other frames. Think of it as a series of jpegs at a very high quality setting. The benefit of this in later editing is frame-accurate cutting, whereas with MPEG and H.264, frames are inter-related in data to get better compression rates. Typically only every 15-th frame stands for itself and all inbetween frames are (without getting into the details) descriptions of differences between this one frame and the following frames. Editing this sort of material makes it very complicated to cut off the first 5 frames of this sequence, as you have cut out your reference frame out. Cutting DV footage is as simple as "chop off this frame here, chop off that frame there".

UnreaL

Improved HD Format for Camcorders

liquidsoapdispenser — Thu, 11 May 2006 23:45:15 EDT

I'm just a consumer level guy, but I thought most digital camcorders use lossy compression...

liquidsoapdispenser

Improved HD Format for Camcorders

WE_DELIVER — Thu, 11 May 2006 20:41:50 EDT

It would make me nervous to shoot on anything that uses lossy compression like mpeg4, etc. However, the Sony XD Cam footage that I have used before has some great color and looks pretty clean over all; and that uses an mpeg based compression on an optical disc.

WE_DELIVER