avi to dvd using 16:9 or 4:3 ?

[wertert]

I'm converting my collection of xvid movies into dvds and I have a few questions if anyone can help.

Most of the avi movies are widescreen with a resolution of 704x288 with a DAR of 1:1. I am using avisynth + cce to convert to mpeg then dvdlab for the final author.

I seem to have two choices when coverting the resolution of the movie. I can either for for a 4:3 frame, this means resizeing the movies to 720x314 and adding a 131 border top and bottom, or 16:9 frame which will involve a 720x418 resize and 79 pixel borders.

Obviously I want the best possible playback quality on my dvd player and tv so am I better off going for the smaller avisynth resize ( ie 4:3 ) and relying on the widescreen TV to perform the zoom or go for a larger avisynth resize (16:9).

example avisynth script

avisource("move.avi")
BicubicResize(720,418) # 16:9
AddBorders(0,79,0,79)

also anything I can do in the avisynth screen to improve quality ?

Thanks in advance

wert

[mpucoder]

Neither of those are correct, they are based on avi pixel aspect ratios (ie, square) which DVD does not use.
Perform the opposite of what you did to make the avi's, and use the original DVD aspect ratio in the recreated DVDs.

[dvdSanta]

"...Perform the opposite of what you did to make the avi's,"

I don't think most people can do that, they just have the xvid movies, which somebody else made them.

I don't want to spam but my program really can automatically set the aspect ratio when burning xvid to dvd. it reads the resolution of the xvid source and determine the real aspect ratio of the original DVD. Believe me, most well made xvid files are following some rules and it's pretty easy to know the original DVD's aspect ratio.

For example, FindingNemo xvid file is 576x320, and we can easily tell it's a 16:9 movie. Now we can just do a reverse job of what they made from dvd to xvid, and we will get the "original DVD" with the correct aspect ratio. This kind of job doesn't take a lot of programming.

[mpucoder]

Originally posted by dvdSanta
I don't think most people can do that, they just have the xvid movies, which somebody else made them.

Those who obey rule 6 have the originals, or at least made the avi's themselves, and we believe that is the majority of the people in this forum.

[dvdSanta]

I don't understand.
If I have the original DVD, I'll make a backup directly out of it. Why would I convert it into xvid first, then burn this xvid back to DVD? The quality will be a lot worse than a direct DVD copy.

[mpucoder]

Exactly, therefore anyone converting an xvid to DVD either lost the original DVD (but should still remember how it was converted) or obtained it illegally. Either way, this forum will not offer much help. Please read rule 6 (http://forum.doom9.org/forum-rules.htm) or this sticky (http://forum.doom9.org/showthread.php?s=&threadid=50766)

[SiXXGuNNZ]

go get the freeware FitCD or donate and get Fit2Disc

http://shh.sysh.de/

this is what I use for my avi --> dvd/svcd conversions and my dvd --> svcd conversions also

I donated, it was worth it ;)

[wertert]

i've got fit2disc. fully Donated. Very good program. I'm happy using 16:9 anamophic.