PDA

View Full Version : difference between NTSC D-1 and DV...


lukx
01-26-2005, 11:45 AM
What is different between NTSC D-1 and DV format. I don't know which one to use for TV and which one for DVD. And the same question for PAL because there is also just Pal and Pal d-1.

vinteg
01-27-2005, 02:19 AM
Hey lukx,

This might help you out. I work only in NTSC, but the PAL info should also be right, correct me if I'm wrong.

NTSC D1:
720x486
29.97fps
Interlaced
4:2:2 Color Sampling
Uncompressed
21.5 MB/sec

NTSC DV
720x480
29.97fps
Interlaced
4:1:1 Color Sampling
5:1 Compression compared to D1
3.6 MB/sec

PAL D1
720x576
25fps
Interlaced
4:2:2 Color Sampling
Uncompressed
21.5 MB/sec

PAL DV
720x576
25fps
4:1:1 Color Sampling
5:1 Compression compared to D1
3.6 MB/sec

NTSC D1 had six extra lines of resolution compared to NTSC DV, 720x486 compared to 720x480. Use NTSC D1 for broadcast and NTSC DV for DVD (Think NTSC DV = DV Disc = DVD).

What if you're working with NTSC D1 and want to put it on a DVD, going from 720x486 to 720x480? Most MPEG2 apps do this for you automatically, but you would crop off 2 lines from the top and four lines from the bottom (It might be 4 top, 2 bottom, I forget). The reason you don't want to crop 3 on top and 3 on bottom is because you are usually working with Interlaced Fields. Doing an even crop from both ends will put your lower dominating fields to upper dominating fields, giving you a fuzzier image and other problems.

PAL has the same rez both in D1 and DV. Only the color information and compression is different.

lukx
01-27-2005, 03:48 AM
thank you very, very much! finally I got it :thumbsup:

MadSkillzMan
02-17-2005, 03:54 AM
Ive wondered what DV2 is, as im getting lousy compression, and i heard over at creative cow.net to try out Dv2.

BlueTide
03-18-2005, 03:39 PM
This might help you out. I work only in NTSC, but the PAL info should also be right, correct me if I'm wrong.

PAL DV
720x576
25fps
4:1:1 Color Sampling
5:1 Compression compared to D1
3.6 MB/sec


Color sampling is 4:2:0. Correct me if I'm wrong, I can forget a number here and there...

vinteg
03-18-2005, 06:41 PM
You are right BlueTide.

I just checked my Final Cut Pro 4 manual and PAL is 4:2:0 color sampling. Thank you for your correction.

CGTalk Moderation
03-18-2005, 06:41 PM
This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.