File size doubles

[dodge]

why does tmpgenc double the file size of a xvid file?

[chickeneater]

make sure the resolution is not too big(not more than 400xsome number less than 400)
that seems to be a problem in encoding for me.
i make the reolution in tmpgenc is half of the original, e.g. 640x272=320x136

[gd_nimrod]

TMPGenc doubles (depending on the settings) the mpeg file because mpeg-4 movies have far greater compression than mpeg-1 or 2. And since you're creating mpeg-1 or 2 (you didnt state anythng about the original file) it can be assumed that you were trying to make an (s)vcd, which requires more space than the original movie source.

[dodge]

i appreciate that an xvid file uses more compression but i have compressed a 700mb xvid files with "vob instant dvd" and the mpeg came out 450mb

[gd_nimrod]

...And let me guess is the resulting 450mb file is very bad quality?

[dodge]

no it was ok(obviously slightly less quality) a friend tried it on his standalone dvd and said it was fine .it was the first half of a two disk xvid film!

I would use "vob instant dvd " all the time but it converts some xvid files upside down, any ideas? i changed settings in fdshow already and it still plays upside down.