strange DVD - various screen ratios in movie

[Heliooos]

Hi,
I wanted to rip my DVD with Tron Legacy and found out very strange thing - the movie is sometimes (some parts) displayed with black stripes as a widescreen (my home display is old 4:3 LCD) but sometimes as 4:3 (without stripes). This occurs when playing in MPC HC or SMPlayer, but also when trying to rip in Avidemux or Vob2Mpg.

First I thought this is a problem of one of the VOB files, but as I found, this occurs inside the VOB - one scene is with stripes and then comes another without stripes.

Has anybody an idea, where could be problem and how to solve it? I need to rip the dvd to play on some portable devices.

thanks

PS: otherwise I would download some existing dvdrip

[nwo]

Some of Tron Legacy was filmed for IMAX3D, i think on the Blu-ray disc you can choose between alternating aspect ratio and a fixed-ratio.

[guns1inger]

Dark Knight was the same (without the option), so it shifts between full 16:9 and 2.35:1.

So technically, it isn't a problem, it's the design.

Is the DVD widescreen or fullscreen butchered ? Do you have the option to play with a fixed aspect ratio ?

If you have the option of playing with a fixed ratio then you just have to rip the right version and encode from that. if not, you can either encode the full frame (be it 4:3 or 16:9) and have some scenes with black bars, or you can crop the entire thing down so no bars in any scenes and encode from there.

What format are you intending to encode to ?

[Heliooos]

Hi,
thanks for reply.

Is the DVD widescreen or fullscreen butchered ? Do you have the option to play with a fixed aspect ratio ?

If you have the option of playing with a fixed ratio then you just have to rip the right version and encode from that. if not, you can either encode the full frame (be it 4:3 or 16:9) and have some scenes with black bars, or you can crop the entire thing down so no bars in any scenes and encode from there.

What format are you intending to encode to ?

It is a burned DVD and when inserting in computer, it automatically starts playing, no options. No matter what player (PowerDVD, MPC HC, SMPlayer). It looks exactly this way:



first one (with stripes) is 00:28:30.280, second 00:28:31.280. Both saved from the same VOB using Avidemux.

Video
ID                               : 224 (0xE0)
Format                           : MPEG Video
Format version                   : Version 2
Format profile                   : Main@Main
Format settings, Matrix          : Default
Duration                         : 30mn 30s
Bit rate mode                    : Variable
Bit rate                         : 3 737 Kbps
Nominal bit rate                 : 9 800 Kbps
Width                            : 720 pixels
Height                           : 576 pixels
Display aspect ratio             : 16/9
Frame rate                       : 25.000 fps
Standard                         : Component
Colorimetry                      : 4:2:0
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.360
Stream size                      : 816 MiB (80%)

What format are you intending to encode to ?

I would like to use MPEG-4 ASP (XVid), probably something like 720x400, MP3 stereo.

[guns1inger]

It is 16:9 encoded (notice the stretching), with the original footage being 2.35:1 and the Imax inserts being 1.78:1.

So you can either encode it with AutoGK (simplest) to 1.78:1 and accept that the bars will come and go, or use the hidden settings to over-ride and crop the entire thing down to 2.35:1 and encode without any bars.

However, any cropping you do in a point and shoot encoder will be a straight crop, without regard for the content. If any of the Imax footage is framed in such a way that heads go above the 2.35 frame, they will be chopped off. This is unavoidable.

I suspect the original disc has the option to play the straight 2.35:1 original version, which would solve your problem.

[manono]

Has anybody an idea, where could be problem and how to solve it?

I think part of the problem is you. The information you provided says the DVD (which you downloaded from somewhere, right?) is 16:9, but you say part of it plays without the black bars on your 4:3 TV set. Right? The first thing I'd say is that you set your DVD player up wrong. It should be outputting for a 4:3 TV set and not for a widescreen TV. You don't even ever see it in the correct aspect ratio.

Then you have to decide if you want to make a 2.35 version of it, cropping away the 1.78:1 effects for the little part of the movie at that aspect ratio, or if you want to reencode it for 1.78:1, with most of the movie keeping the black bars.

[Heliooos]

I think part of the problem is you. The information you provided says the DVD (which you downloaded from somewhere, right?) is 16:9, but you say part of it plays without the black bars on your 4:3 TV set.

Ok, sorry for a small confusion with the monitor. Ok, it is 4:3 and I know that all the widescreen movies will have black stripes or will be cropped to fit it correctly (this is not the first movie). Just now I tried it on my second pc with FullHD 16:9 screen and same problem - some parts fit whole screen, some have black stripes.

Then you have to decide if you want to make a 2.35 version of it, cropping away the 1.78:1 effects for the little part of the movie at that aspect ratio, or if you want to reencode it for 1.78:1, with most of the movie keeping the black bars.

I also thought about manual resizing all to 16:9, but it would take to much time. Looks like 1.78:1 version is the best way (I will check it first for "chopped heads" as guns1inger said).

[guns1inger]

If you go 1.78:1 then there is no cropping, but you will keep the bars during 2.35:1 sections. Only if you crop to 2.35:1 do you need to worry about heads/feet etc.

Of course if you crop to 2.35:1, which is the original aspect ratio for standard release, you will get black bars on all playback devices because it will be wider than 16:9 (1.778:1). This seems to be something you are averse to.