NTSC standarts.

[tonyzz]

Hi guys,
I just started capturing video and I need some help. First Im not sure how the NTSC system works. From what I hear a regular TV (not DTV or HDTV) is capable of displaying up to 720 horizontal lines, off air broadcasting has 526 lines, S-VHS has 420 lines and VHS 320 lines..is that correct???

Further more, Im capturing video using an ADVC-100 converter...if Im capturing from a 420 lines source how do I end up with 720 lines when I burn to DVD?? Does the converter/TMPGenc do some kind of interpolation???

I'm using ADVC to convert to DV and TMPGEnc to convert DV->MPEG2...anything else would help me to get a better picture quality when I burn to DVD ?? ( Im not exactly impressed with the quality of my videos)..Mostly Im recording from my DishNetwork satelite receiver

Thanks for your help.

[snowmoon]

I suggest you research a few terms first and you will start to understand better why the whole thing is just messed up.

Lines of resolution
scanlines
Kell factor


The summary is as follows. LOR is a very subjective term that is misapplied to many things, but it generally applies to the overall "Horozontal resolution" of a particular signal. NTSC has a fixed number of scanlines 525, but only 480 actually carry video signals they rest are blanking lines.

DVD = 540
LD = 480
Good TV broadcast = 420
VHS = 230

These are consitered the MAX values for these meduims and could be much lower if the signal or source is degraded.