Burning a video DVD (was: dvd burning)

[Rodolfo Medina <rodolfo.medina@gmail.com>]

Hi, all.

I created `image.iso' from a video DVD with:

 $ readcd dev=0,1,0 f=image.iso

. Now I want to copy it onto an empty DVD with:

 $ growisofs -dvd-compat -Z /dev/scd1=image.iso

, but I get the following:

 Executing 'builtin_dd if=image.iso of=/dev/scd1 obs=32k seek=0'
 :-( /dev/scd1: 2298496 blocks are free, 3993460 to be written!

. What now?
How come the source DVD is bigger than the empty one?
How to copy the video?

Excuse the basic questions, thanks for any help
Rodolfo