reducing video sizes from large gigabytes to smaller kilobytes

I will like to know if there is a possiblilty of converting the size of video f开发者_C百科iles from gigabyte to small kilobyte sizes and for the files to still be of high quality resolution and can be played on a flat screen.

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Compressing a video from N Gigabytes to N Kilobytes is a one million-fold reduction in size. That's one pixel-worth of output for each 1 million input pixels. That level of compression / reduction is inevitably going to give you a drastic reduction in resolution and frame rate ... at best.

Actually, I'd be surprised if you could get more than a 100-fold reduction before the loss in picture quality became severe.