A program that can add random data to any file?

Hi all

I'm in an unusual situation where I need to make a small video file look like a bulky one. Is there any way I can stuff random data to a 100 MB video file and make it look a lot huger, say 800 MB or 1 GB? The video needs to play as it was playing before but the size needs to look bigger and I wouldnt like to convert to a higher bit rate or something to make it look huger. Stuffing random data would be better!

I have a lot of files that need to be "bulked up". Any program that can do this for me? Any suggestions brothers?

Thank you!

put some other video files in the directory and use some software to hide that file.

thats not a bad idea if I'm using folders. But I intend to use the file as it is and would love to have the file itself showing as 1 GB.

Ideas any? Surely someone here must know of a tool that can do just that!