Reduce file size by changing image size

[Trebly]

Hello,
I tried to find this information into the forum without success. I believe that it probably exist, but where ?

Even I use photo edit tools, I am a new user of video. I made someones but it is the first time that I meet the following problem :

- I have a movie (.mov) with 640x480 image size and the filesize is 32Mo for 2mn45s.
- To view it into a website page I determine that the best should be 320x240 size with a filesize near 10Mo (to begin quickly and have comonly a fluid flow).

I believe that with the same definition a treatment should reduce the filesize (for images I change pixels definition size of the image - so the image disply size at 100%- and later I compress it) in such case the size of the file is reduced by a 4 factor.

When I create a videofile with Mediastudio video editor from 640x480 with a 320x240 size the image quality goes to 320x240 but the filesize is not reduced. Which parameter to change the image dsiplay size and the filesize ?

I am sure that I missed something.

Thank's for your help

[MrA]

My best luck was either rendering it to a wmv file or converting it to a flash file with a utility called Flash Video Studio found at http://www.flashvideostudio.com/. FVS will make a typical file that you have to about 6 megs or so.

[Ron P.]

I agree with Mr. Amigo2121, especially about converting it to Flash format. Flash seems to be about the most common format used currently for streaming video over the web.

[Gorf]

...When I create a videofile with Mediastudio video editor from 640x480 with a 320x240 size the image quality goes to 320x240 but the filesize is not reduced. Which parameter to change the image dsiplay size and the filesize ?

I am sure that I missed something...

File size has nothing to do with the frame (image) dimensions.

File size is determined by bitrate and duration only.

A one-minute video at 1mbps is always 7.15 MB irrespective of the framesize, codec etc.

The quality - how good it looks - is mosty determined by bitrate, codec, image dimensions, framerate, colour depth and video content.