How 2 find correct field order on interlaced DVD-rip?

[DRP]

I rip a DVD main feature which is interlaced - I know the VOBs are interlaced because DVD2AVI tells me so and I can also see the comb lines in the preview window in TMPGEnc in certain scenes - but then when I follow this procedure to determine which field comes first...

Procedure to find the proper field order in TMPGENC
1. Select a field order, Top field first (field A) or Bottom field first (field B)
2. Double click on Deinterlace to open the deinterlace filter dialog
3. Use the slider to find a scene with a horizontaly moving object
4. Select the filter Even-Odd field (field)
5. Move with the slider through the scene
6. If the movement is smooth then the field order is ok, if the movement is jumping back and forth then change the field order

...I can't get the "jumping back and forth" effect regardless of whether I set the field order to be field A or field B first. In both cases, the movie progresses smoothly with none of the jumpy effect that is the signature of having the wrong field order set.

Why is this happening? Why does is not seem to matter which field order I have set when the VOB is very definitely interlaced?

An interesting point to note is that the above is only the case for the main feature on the DVD (the main movie). All the other "extras" like 'The Making Of', 'Deleted Scenes', 'Interviews With The Actors' etc. etc. *do* behave as they should and *do* have a correct field order to them which does give the jumpy effect if you set it wrong.

[HillJack]

4. Select the filter Even-Odd field (field)

I can't remember exactly, but isn't there an Even-Odd Field (both) option? That's the one you should be using.

I do exactly what you're trying to do every Sunday evening with my TV caps, and your procedure is exactly how it's done, so you should be seeing the garbled movement. But it could be you're not using the correct Even-Odd field setting.

[FulciLives]

Well since you are using TMPGEnc just use the WIZARD MODE as it will set the field order automatically to the correct one.

Towards the end of the WIZARD MODE there is an option to go into EXPERT SETTINGS where you can fine tune stuff so there really is no drawback to using the WIZARD MODE as it allows you to do everything you can do without it but with the benefit of it properly selecting the FIELD ORDER for you.

- John "FulciLives" Coleman

[DRP]

I can't remember exactly, but isn't there an Even-Odd Field (both) option?

No there isn't. The options are:

Even-Odd field (field)
Even-Odd field (field, adaptation)
Even-Odd field (field, animation, adaptation)
Even-Odd field (field, animation, adaptation2)

[DRP]

Well since you are using TMPGEnc just use the WIZARD MODE as it will set the field order automatically to the correct one.

Um, no thanks. I stopped using the Wizard mode a long time ago and I ain't going back again There are features that are not available in the Wizard mode which I use for every single encode I do, so going back to the wizard is not an option I'm afraid.

I should point out more directly however that what I am noticing is not really a *problem* as such. You see it doesn't matter which field order I do select for the interlacing, the end result is always perfectly smooth as it should be - never jerky. The thing I really would like to know is why does this happen? All the guides I've read say this shouldn't be happening. How can an interlaced video run smooth when field A or field B is displayed first?

It's not on just one DVD that I've noticed this happening either. I've noticed exactly the same thing on the last 6 DVDs I've ripped, but in all cases, it's only the main feature movie that behaves this way. The extras and other VOBs on the disc behave like they should with jerky motion if you set the field order incorrectly.

[FulciLives]

Well since you are using TMPGEnc just use the WIZARD MODE as it will set the field order automatically to the correct one.

Um, no thanks. I stopped using the Wizard mode a long time ago and I ain't going back again There are features that are not available in the Wizard mode which I use for every single encode I do, so going back to the wizard is not an option I'm afraid.

Well as I pointed out that really is not true but hey whatever. Do what you will.

- John "fulciLives" Coleman