After rendering DVD when viewing on TV it appears to to stretched.

MJ220 wrote on 7/10/2003, 10:58 AM

I rendered DVD project and played it on TV and my title and animations seemed to be stretched across the screen. Is the an aspect ration problem? 720x480 is what i rendered at. Please help. I just watch it to be able to be watched on 4:3 TV viewing . Thanks Newbie

Comments

Jsnkc wrote on 7/10/2003, 5:16 PM

Maybe you rendered it at a 16:9 aspect ratio and authored the disc using a 4:3 ratio. that will cause everything to look stretched.

John_Cline wrote on 7/10/2003, 5:37 PM

I suspect the problem is that you generated your graphics at 720x480. Computer monitors and consequently, graphics programs, are based on square pixels. A 4:3 aspect ratio would be 640x480, not 720x480. DV video is based on rectangular pixels, they are taller than they are wide. They fit 720 rectangular pixels in the same horizontal space that would normally contain 640 square pixels. This is what gives DV its extra horizontal resolution. The aspect ratio for DV is 1.5:1, but when viewed on a television, it get's displayed at 1.333:1 (4:3). You need to generate your graphics at 720x540 (or more accurately, 720x534) and, as the final step before saving them, resize them to 720x480. They will look "odd" on the computer monitor, but will display correctly on a television. Be sure to tell Vegas they are at .9 aspect ratio. (This is under the clip properties.)

Optionally, you can just generate them at 720x534 and pull them into Vegas and let it do the aspect ratio conversion for you.

Either way, you were bitten by the square vs. rectangular pixel issue.

John

videoman69 wrote on 7/10/2003, 8:21 PM

Good explanation. That is why in Photoshop you design in 720x534. That way a circle you make in PS will look like a circle on TV.

MJ220 wrote on 7/10/2003, 9:34 PM

Thanks guys for reply. So render title and graphics at 720x534 and this will correct the viewing problem?

MJ220 wrote on 7/10/2003, 9:49 PM

Do I need to generate my video the same 720x534?

MJ220 wrote on 7/10/2003, 10:52 PM

Also do I need to Pan/Crop to change ratio on my video to 720x534?

jetdv wrote on 7/10/2003, 11:01 PM

To make things look correct, just scan images normally, add to the project, go into Pan/Crop, right-click the image, and choose "Match Output Aspect".

videoman69 wrote on 7/10/2003, 11:21 PM

Re-read all of Johns reply. In Photoshop for DVD menus I start with a canvas of 720x534. Do all of your creation then duplicate that and re-size to 720x480 - The DVD standard NTSC pixel size. Now save that for your DVD menu. The video is already 720x480.

PDB wrote on 7/11/2003, 3:56 AM

Just wanted to mention that the problem may not have anything to do with the project itself, but rather with the configuration of the player - at least it has happened to me. Dvd authored looks fine off my dvd but all stretched out off my in-laws dvd...

worth investiagting I think?

Reagrds

Paul.

John_Cline wrote on 7/11/2003, 8:50 AM

Usually, you need to tell the DVD player what the aspect ratio of the television is so that it can automatically adjust the display aspect ratio of 16:9 and 4:3 programming. If you have a 16:9 TV, then it probably has settings for "zoom", "full" and "normal" (or something to that effect.) Some of the settings on either the DVD player or the TV need to be tweaked.

John