Evening All,

Now this could be a stupid question but it is something I have never actually learnt.

When you export from CS3 (as with any programme i guess) you should check the de interlace box when exporting for use on the web/computer screens? I beleive this to be true though I dont know the science behind why

Should I de interlace when exporting to DVD for playing on the TV or not?

I have had an experiment doing both inter and de inter for dvds and cant see much of a difference on the telly.

anyone know the science behind the reasons for or against, please let me know

Cheers

The difference is small.

If it's for a tv - interlcae. PC - deinterlace. But getting it wrong is trivial. All my wmvs online are compressed from interlaced and it looks fine.

Televisions that run at 25 fps ( most) look far better displaying an interlaced pic .

Progressive at 25p is juddery.

More - Interlace - Wikipedia, the free encyclopedia

There's a technical reason to it, but the fundamental is that if you watch anything on a PC with software that's doesn't apply a deinterlace filter, you will need to deinterlace.

So to be on the safe side, if you produce a DVD, don't deinterlace. If you're not producing a DVD, de-intelace.

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I appreciate your help Mark. I didn't even think to have a look on wikipedia.

When i had a test using both I could tell any noticeable diff but its always good to know the theory behind the process.


Cheers for the reply

Aha! rapid response, cheers also to you Marc

Perhaps the only time it notices is on fast motion.

And as for the duopoly of helpfull markcs - lucky we said the same thing...