Virtual Dub and Divx 5..

[Maezr]

Not sure where I should be posting this, but eh..

I've got some MPEG movies that I'd really like to compress.. I downloaded virtual dub, selected Divx 5 for the compression, the framerates and audio remain the same, yet the file size INCREASES on every file. What the hell am I doing wrong?

 

[The Stigenator]

haha.. how cute..

MPEG = Compressed

so techincally you are trying to recompress an already compressed file. So what happens is divx puts its headers on it and then compresses a recompressed file that cant be compressed anymore. Hence you end up with a bigger file cause divx codec's header is larger than MPEG's header

get it?

 

[pulse8]

<< so techincally you are trying to recompress an already compressed file. So what happens is divx puts its headers on it and then compresses a recompressed file that cant be compressed anymore. Hence you end up with a bigger file cause divx codec's header is larger than MPEG's header >>

That may not be the case. You're assuming he's setting Divx up with the same bitrate and audio quality as the mpeg. He can also be making it a higher bitrate and audio quality. While it doesn't gain anything in quality, the size will get bigger.

 

[Czar]

Select 1pass quality based
And select mp3 sound compression.

I think you have set 1pass normal with way to high bitrate and no sound compression, thats why you are getting bigger files.