convert compressed avi files to mpeg without increase in file size?

[jasoothai]

Is there any way to do this. When i convert a 100mb avi file to mpeg it is becoming 400mb..!!!any way to solve this?

thanks .....

[jagabo]

file size = bitrate * running time

So use a lower bitrate. But your AVI is likely compressed with a codec that compresses better than MPEG 2 so the resulting video will probably look like crap.

[hech54]

Is there any way to do this. When i convert a 100mb avi file to mpeg it is becoming 400mb..!!!any way to solve this?

No.

[jasoothai]

thanks.....

[jasoothai]

But your AVI is likely compressed with a codec that compresses better than MPEG 2

what is that codec? or which codec can compress that way?

[hech54]

But your AVI is likely compressed with a codec that compresses better than MPEG 2

what is that codec? or which codec can compress that way?

If you are trying to make a DVD (playable in a DVD player attached to a TV for viewing)...you have no choice. DVD is MPEG2 and can be nothing else.

[jasoothai]

okey.... thanks for that conclusion.....

[jagabo]

You can use MediaInfo or GSpot to get information about your AVI file. My guess is Divx or Xvid.

If you want something that plays in all DVD players you need to convert to MPEG 2 with DVD compatible properties. You'll also need to use a DVD authoring application to build the proper structure for DVD.

If you're just looking to make a smaller file you may want to use h.264 encoding. It delivers the best quality for the size. But be sure your intended playback device will support it. The AVI container isn't the best for h.264 video. You'll probably want to use MP4, M2TS, or MKV. Again, which you use will depend on your playback device.

High compression "lossy" codecs work in part by throwing away information that you won't notice is missing. Recompressing from one lossy codec to another will result in quality loss. More small details will be lost and more artifacts created. With any particular codec, the smaller you make the file the less detail and more artifacts it will have.