Originally posted by dlinkwit27
Well, how do they? and Why don't OS and files jsut make themseves smaller by default?
In answer to your last question, it sounds like you mean: "Why doesnt Windows just say it's a smaller file size?". If that's the case, then it's wrong to ask that question because a program cant just dictate an arbitrary size for a file, like a 100 MB movie file occupying 100 KB of diskspace, because file contents are dictated by teh amount of bytes written to them, and in essence how many bits of data on the hard drive were used to store the entire contents of the file, which, in total is the size of the file. It would be nice to have the movie example be true, but out data would corrupt quite easily as we cant just expand out physical capacity just cuz you want it to.
If you meant compression wise, "Why cant the compression be better and stronger to make smaller files?", then it all depends on the crazy math and algorithms used, but I'll bet that eventually, mathematically, it's impossible to compress beyond a certain point.