How to reduce 640x480 size mpg by half

[AshleyQuick]

I'd like to simply deduce the size by half while maintaining the quality. What's the recommended method?

Ash

[hexxisoft]

reencode it and change either the screen size or the bitrate, whichever.

[AshleyQuick]

What do you mean reencode? With what? How?

[reboot]

Are you trying to get it to 320x240, or are you trying to reduce the size of the file?

[redwudz]

Try TMPGEnc encoder(Or any MPEG encoder). You can make it any size you want. Try a short clip of a minute or two to experiment with. How it will look or play is another question. As long as you are not going to use it for a DVD or SVCD or some set format, it won't really matter.

[AshleyQuick]

I'm trying to get it to 320x240. This is not a file size concern...I simply want the dimensions reduced.

[reboot]

I hate to ask why...Most encoders/editors will do this. Look in the Tools section, under mpeg editors.

[wulf109]

Reducing the file size by 50% will certainly reduce the quality. File size equals bitrate. What size is the file now?

[edDV]

640x480 to 320x240 is a 4x reduction in pixels and data.

320x480 or 640x240 (single field) will get you your 50%

Be more specific what you are trying to do.

I'm trying to get it to 320x240. This is not a file size concern...I simply want the dimensions reduced.

Taken literally, you would want to reencode at 320 x240 at the same data rate.