Featured New Release
Box cover for Our Forbidden Trio
Our Forbidden Trio
Studio: Team Skeet
Release date: 7/27/2026


all new releases
All Forums > Tech Talk > Tech Talk Forum Page 19 > Interlace problem with a DVD
AuthorPost
sir wankalot
Member

UK
904 Posts
5/03
Posted - Jun 8 2010 : 12:01PM
I bought a cheap NTSC Acid rain dvd recently, and it's showing major interlace problems with lines along the edges of any movement occuring on screen.
I had thought that interlace problems were dealt with during the conversion to DVD process...and certainly that my TV or dvd player would automatically counter it's effects.
As it stands, it pretty much unwatchable on my TV. Only my PC media players in 'deinterlace mode' give a normal picture.
Actually, even when deinterlace is off, my PC still shows less jagged lines. Surprising, as a PC monitor would normally be worse for watching a film with interlacing issues.
Question is, how do i correct the footage so i can watch on a TV?
I have video editing softwate like Sony Vegas and also free back up software like Dvdshrink.
DrP0rn0
Senior Member

1836 Posts
5/04
Posted - Jun 8 2010 : 1:13PM
This is a complicated question. How you are connecting DVD player to TV is a big part of this. If your player is progressive scan (480P) or an HD upconverting player, it should have a menu selection for deinterlacing mode. The default works well for most content, but there's usually a second selection that works better primarily on video (30 fps) based content.
You mention NTSC which also begs the question of whether your player and TV are native NTSC or PAL. If it's PAL, I'm totally out of my depth here.
Good luck.
Dr. P
jrsl76
Senior Member

Perfection
4024 Posts
8/07
Posted - Jun 8 2010 : 7:28PM
The dvd might have been flagged incorrectly. If you're in progressive mode on your tv, try changing it to interlaced and see if that helps.
sir wankalot
Member

UK
904 Posts
5/03
Posted - Jun 9 2010 : 9:27PM
I'm in the UK. Although we use PAL, our dvd players and TV's have been able to playback NTSC for years now.
I have watched perhaps 700-800 ntsc adult dvds without issue.
I have tested on a fairley new Sony Bravia widescreen TV, and a pretty old portable TV. Both dvd players are just a few years old.
On my dvd setup menu i found an option that allowed me to select my crappy portable TV as ntsc (even though it's clearly not). This remedied the problem, although fast forwarding the footage results in an unusually jerky and unnaturally distorted picture.
I noticed a progressive option in my dvd menu...but it wouldn't allow me to access it.
There is something clearly different about this dvd compared with the hundreds of others i have imported from the US.



Jump To: