Recording mpg's

Kevin Brown plug-discuss@lists.plug.phoenix.az.us
Tue, 14 May 2002 09:48:03 -0700


You are off by a bit.  NTSC resolution appears to be 768x494, 30fps (60Hz
Interlaced images).

PAL (which is NOT used in the States) is 720x576, 25fps (50Hz Interlaced
Images).

What is visible on the TV screen is about 768x450 under NTSC.  The other 44
lines are above and below the frame surrounding your TV set and are usually used
to hold things like Closed Captions and other hidden information (like text
telling the TV station to where start and stop ads).

> Following up on this... I have an off-the-list-question about MPEG 2.
> 
> Has anyone taken classes in Video Production anywhere?
> 
> I'm making a commercial for a client and they need the final project encoded
> in MPEG2.
> 
> First, I am having trouble finding out what resolution American TVs use.
> I've read that we use PAL, and I've read that we use NTSC standards, but
> then also, I've seen resolutions of 720 x 450 and I've seen them at
> 500-something by something... I used NTSC 720 x 450 when I started, I'm now
> done with it, but when I go to encode it as MPEG-2 it says that the
> resolution needs to be in increments of 8... that would make it 720 x
> 456....
> 
> Can anyone help?