4:3 Letterbox to 16x9.....

[jackb]

I have searched and I know how to use this function I just have a question I couldn't find a post about. I have a dvd that is 7.5 gigs and 4:3 letterbox. I want to convert it to 16x9 and realise I have to encode it to do this. My problem is I don't want to encode the dvd down to a dvd5 size as I want to burn it back to a DL disc so I don't want the physical size of the concert to change. Is there a way I can accomplish the 4:3 to 16x9 conversion without CCE encoding it down to a dvd5?

[laserfan]

Yes, you have to change RB's TargetSectors setting in the ini file to make your target a DL vs. a DVD-5. If you haven't done this before, look at the Settings sticky. Here is what jdobbs said in another recent thread:

http://forum.doom9.org/showthread.php?p=724154#post724154

[jackb]

Thanks man thats what I needed I will give it a try... :)

[laserfan]

By all means report-back on how well it works for you! I like the idea of using RP-PRO with DL discs also, just have a very limited number of reasons/discs for doing so...

[jackb]

Well I had to do it a couple of times because the target sectors in the thread you linked to were too high for the DL discs I have therefore the disc came out to big to burn but after playing with it I finally got it down to the correct size. I am going to burn it tonight and will let you know how it worked...:)

[kmac61]

Just out of curiosity - I've had a couple of titles that with my 4/3 tv were more enjoyable to watch at 16/9 than the original 2.35:1 I tryed rb's option to resize but to me it noticably distorts the picture
rb uses LanczosResize(720,480,0,60,720,360)
I've had (to me at least) better results with - Lanczos4Resize(720,480,87,58,546,364)
anyone have an opinion or info on this?

[Video Dude]

That option is not meant to convert 2.35:1 to 1.85.1.

Its meant to convert 4:3 encoded letterboxed widescreen video to anamorphic 16:9.

Anamorphic 2.35:1 and 1.85.1 are both 16:9. It would be a mistake to use DVD-RB's 4:3 -> 16:9 option on this material.

[kmac61]

while this is not the forum for this if you have a second there's 1 thing I've always wanted to know - if you have a widescreen tv and play an anamorphic 2.35:1 does the screen size increase or do you get more lines of resolution with the same 2.35:1
ratio

[Video Dude]

If you play an anamorphic 2.35:1 DVD on a widescreen TV there will be black bars on the top and bottom.

An easy way to get rid of the black bars is to press the zoom button on your DVD player. Many HDTVs also have a zoom or a smart stretch feature to get rid of the black bars.

All commerical DVDs are typically the same resolution, no matter if they are 2.35:1 or 1.85:1.
NTSC: 720 x 480
PAL: 720 x 576

Resolution is not the same as aspect ratio.

[laserfan]

...I am going to burn it tonight and will let you know how it worked...I like to use RB Pro to do lb-->16:9 conversions and have been thinking lately about the "double whammy" associated with this, ie. reducing the bitrate by almost half, at the same time up-sizing to full 720x480 anamorphic, so I wanted to give this a try.

I made myself an appropriate TargetSectors for my DVD+R DL disc, and added Layer_Break_Removal=0 to my rebuilder.ini file, and it all worked. Checked the VIDEO_TS with PgcEdit and output/burned with ImgBurn. The new DL disc plays fine, even (especially?) thru the layer break, which my Sony sometimes has problems with for a down-sized DVD-9 to DVD-5 conversion.

Something else I used was Lanczos4Resize instead of LanczosResize, said at the Avisynth site to be "sharper", and while I am hard-pressed to see a difference, the disc I converted was a pretty lousy one to begin with (the now-infamous "Quiz Show"). To do this, I edited all the .avs files after the PREPARE stage.

But it all worked...

[jdobbs]

I just edited that thread... the TargetSectors value I recommended was way too high. I've been told that 4050000 is a good value, so I changed it.

[Carpo]

programmer error agian ;)

[laserfan]

As I recall what I did was I took the default TargetSectors, subtracted from a full DVD-5, then doubled it.

In any case I used TargetSectors=4116776