Question of dvd dar

[rgr]

Handbrake assumes the full frame is 4:3 DAR -- this follows the DVD spec. Many DVDs made from analog video tapes capture according to the ITU spec which puts the 4:3 image in a 704x480 (704x576 PAL) portion of the 720x480 frame. But when those are made into DVDs the full 720x480 frame is used. This gives a ~2 percent AR error. You'll never notice the error. The professionals that make the DVDs don't care. So why should you?

Hi.

I have such a question - VHS tape digitized to DVD (720x576). So what is the correct PAR of such a clip? 16/15 as ffmpeg says?

[Sharc]

Handbrake assumes the full frame is 4:3 DAR -- this follows the DVD spec. Many DVDs made from analog video tapes capture according to the ITU spec which puts the 4:3 image in a 704x480 (704x576 PAL) portion of the 720x480 frame. But when those are made into DVDs the full 720x480 frame is used. This gives a ~2 percent AR error. You'll never notice the error. The professionals that make the DVDs don't care. So why should you?

Hi.

I have such a question - VHS tape digitized to DVD (720x576). So what is the correct PAR of such a clip? 16/15 as ffmpeg says?

For a 4:3 PAL 720x576 DVD: If the picture has left and right small black bars of about 8 pixels each side the PAR is usually 12:11, otherwise typically 16/15. But as ffmpeg doesn't "see" the black bars it will always report 16/15 for a 4:3 720x576 PAL DVD.
Keep in mind that the DVD standard specifies the DAR only which is 4:3 or 16:9. It doesn't explicitly specify the PAR.

[johns0]

rbr,next time you post please open a new thread instead of taking over another for basic questions,this time i created a thread for you.