Virtualdubmod and 16:9 aspect ratio problems

[astronob]

Sorry for my ignorance, but I hope someone can give me some guidance with this problem. I have some tv captures which have a 16:9 aspect ratio. I used VDubmod to fix a few things (frame rate, resizing etc), but whenever I save the file, it is always in 4:3 aspect ratio. Is there even a setting for exporting the resulting avi to a 16:9 aspect ratio? If there is I can't find it for the life of me. Is this a feature omission, a bug or what? Your help greatly appreciated. Thanks!

[unskinnyboy]

It doesn't make much sense to talk of avis as 16:9 or 4:3. Perhaps it would make better sense if you could show us a screenshot of the GSpot output of the avi *and* a screenshot of the avi itself. I suspect either the cropping/resizing wasn't done properly or the cropping part missed out altogether.

[astronob]

Never mind, found the feature in vdubmodresize. ;)

[netmask]

A similar but slightly different problem...
I have a VOB file that was created by a 4:3 DVD recorder that has source material of aspect ratio 2.35:1 (Panavision Anamorphic) within a 4:3 frame. (Played back from a LaserDisc to DVDRecorder by unknown to me) So there are black bars top and bottom and smaller both sides. I am attempting to reprocess it for showing on a HDTV 16:9 TV as the DVD rip plays back quite a small image within my Samsung 40" LCD. I am lost in the maze of options in VirtualDub. The best results so far was to use AutoGK and make a 100% quality file keeping AC3 sound and from that 2 gig avi make a DVD. I'm sure there must be a better solution that has inherently less loss of resolution?

[pelmen]

you aren't losing resolution. 4:3 and 16:9 SD signlas are the same pixel resolution, they just use different shaped pixels. to fix up your avi search for mpeg4modifier which can resave your avi and set the pixel aspect flag to whatever you want. this is what i use for my rips so when i play them on my divx dvd player and widescreen tv they aren't distorted. there is no recompression involved, it only takes as long as resaving the file to a new location. you can check the aspect ratio by playing with videolan as it takes notice of the pixel aspect ratio.

[unskinnyboy]

@pelmen, netmask's source is a VOB, not an AVI. Hence MPEG4 Modifier cannot be used here in any manner.

@netmask, You need to crop the blackbars around the picture and resize to the nearest MOD16 resolution when compressing to avi. This is what AutoGK does. If you want to get better quality, encode anamorphically without resizing. But AutoGK won't do this. Use MeGUI or something else for this.

[netmask]

Thanks Unskinnyguy :)