Standard resolution for AVI and DVD.

[tmv200]

1. I have some mpeg4 format movies converted with xvid or DivX codecs. I was checking resolution of each film (by AVIcodec tool) and it shaws different resolutions like
384x256
512x288
560x304
592x320

and so on. As I edit my amature fillms and then make DVDs I used to the PAL resolution 720x576. I was going to convert them to mpeg4 format but after looking at other mpeg4 films with different resolutions (see above) I was confused what resolution to select. Any advices?

2. I have a DVD disk with many series (total about 12 hours on a 4.7G DVD disk), it shows resolution 352*576 but on usual TV set (4:3) it looks normal full screen. How it can be so?

Thank you. Michael

[yoda313]

it shows resolution 352*576 but on usual TV set (4:3) it looks normal full screen. How it can be so?

That's because that is called HALFD1 resolution - it is a legitamate dvd resolution accepted by the specifications.

As for the avis if you are talking about converting them to dvd you can use either the HALFD1 resolution you pointed out or 720x576. Either one is acceptable. Some say using the Half D1 is more forgiving for lower bitrate videos.

Why not do some experimentation and see what you like??

[jagabo]

In case it isn't clear: with MPEG files (DVD) the Display Aspect Ratio (DAR, the shape of the picture as displayed on the TV screen) is independent of the frame dimensions (as measured in pixels).

For example 720x480 frame can encode a 4:3 image or a 16:9 image. Conversely, a 4:3 image can be encoded with 720x480 or 352x480 frames.

[tmv200]

Thank you, guys. I understand about HALF D1 though still do not realize why 352 - half tom 720 might be 360 . And I do not understand the trick how this half height format is played by a player as full format rgiugh there are many such tricks with video