Hi Carl,

Thanks for the quick reply.

Will have a go at trying to replicate how I encoded it when I get ihome and will WeTransfer 30 seconds for you to look at.

The DVD did originally have deinterlacing errors but I managed to breed them out on Wondershare on my re-encode. I needed to do a re-encode to shrink the subs (which were huge) and hardcore them. So on my final master they're gone. When I DCP that master the image errors come back???

I'll chop you off a piece and will send it over hopefully today :-)

Thanks as always mate!

Stellar stellar work!

M A R C

Get Outlook for iOS
From: Carl Hetherington <cth@carlh.net>
Sent: Saturday, June 3, 2017 3:11:02 PM
To: Marc Brown
Cc: dcpomatic@carlh.net; Marc Brown
Subject: Re: [DCP-o-matic] GREETINGS FROM THE ICA IN LONDON
 
Hi there Marc,

On Sat, 3 Jun 2017, Marc Brown via DCPomatic wrote:

> Hi Carl,
>
> I hope you’re well.
>
> I did email you a while ago regarding encrypted DCPs but I’ve hit a new unrelated wall I’m hoping you can help with.
>
> So I’m hoping to rip this crappy 30fps NTSC DVD that’s 1:66:1 “floating” in a 16:9 container. I’ve done all the zoom ups, re-sized and re-edited the subs and my
> master MOV file is free of deinterlacing errors. I’m very happy with it….well, as happy as you can be from such a crappy source :-/
>
> But here’s the very weird thing. DCP’ing “creates” visible deinterlacing errors?? Ones not present (or atleast visible on the master file) but very pronounced on
> the DCP. [IMAGE]

That is odd.  I think the decoder in DoM must be doing something odd.  Is
there any way you can send me a few seconds worth of the source file (just
enough to see the artefact)?

You can use carl@dcpomatic.com or cth@carlh.net to email me off-list.

> I suspect it’s picking up on imperfections in the image?? Never had this with DCP O’Matic before, it usually does the opposite and removes the imperfections??
> The obvious suggestion is to re-encode using one of your de-interlacing filters…the trouble is that’s what you’re looking at above, the second pass with the first
> filter enabled L All it seemed to do was smear the image.
> Do you have any advice with this? I don’t want to keep doing multiple passes and hit the same issues as sadly the film is feature length with no other masters
> available L
>
> Huge thanks as always. Feel free to add the Institute of Contemporary Arts in the UK to your impressive roster of clients. We’re on the Mall, so you’re (rightly) a
> stone’s throw away from royalty now and deservedly so J

Thanks a lot, I will add ICA now!  Very cool!

All the best,
Carl