Straight info about DVDs, and TV standards

[thomas fritscher]

Am 16.12.2003 schrieb Peter van der Linden <pvdl at afu.com>

>[...]

peter, you had me well confused here for a second but now everything i
knew stays true ... let me say one thing though:

>There is only one DVD format used for commercial video.  The video 
>files on a DVD are stored in MPEG-2 digital format.  The files are 
>encrypted, region locked, and with a macrovision degraded signal.  The 
>MPEG-2 video
>encoding on DVD is independent of PAL/NTSC protocols.

saying this is like saying vhs is system independent because ntsc and
pal are both recorded onto a tape via a vcr. of course mpg-2 doesn't
care what it contains, just as the vhs tape doesn't care. point is that
you create your mpeg-2 according to the tv specifications of the system
it's for.

>So for practical purposes, you can consider that the tv standard 
>(NTSC/PAL) is a parameter of a DVD.

no. tv standard *is* a parameter of a dvd. and a pretty important one as
well if you produce in pal and want to sell in an ntsc country.

regards,
thomas