Do you think you can compress a 1GB file to mere 10MB.If you say no you are mistaken, you can do it with KGB Archiver. Ok, I will explain it to you.KGB Archiver is an Archiver which works according to a specific algorithm which offers high compression rate. But you also need to know that it will take long time to do it. Also your computer should have good performance ,minimum configuration for this piece of software is 1.5Ghz processor and 256MB ram.

Some of its main features are the following :
1. Explorer shell integration.
2. Multiple language support.
3. Faster compression utilizing all your system performance.
4. Can be run in Linux using Wine.

ScreenShots

kgb archiver

Home page of KGB Archiver.