How to compress video files?

The compression ratio can be about how much, how to operate the specific steps that can be said that the step-by-step detail what point?

First need to download A software:batch Real Producer.Can be downloaded here:/ soft/16102.htm
in the upper left corner to add files, select a file, you can select multiple files for batch processing.'s Option on the right side through the video quality Adjust the size of the video file, choose the general dynamic coding, the greater the bit rate, the less the loss of video, of course, the greater the compressed file.Video encoding, we generally choose the real video8, we do not have to in order to facilitate the loading of any video plug-in can Normal viewing.In the lower right corner of the option and the production of copyright and the like, players in the paper when players will display the title as well as producers, we can think of to see your name and your game is how things nice ! In the lower left-hand corner to choose the path output.Everything is set up after clicking the “beginning of compression 'can
the usual AVI format 800 trillion to 100 trillion pressure into the RMVB format