My god people can be so stupid. Several people (including myself I believe on one of the pages), have stated this highly compressed stuff is a load of ****. But in case you didn't get the message:
ITS A LOAD OF ABSOLUTE ****.
You simply CANNOT compress several gigs of data into such a miniscule amount, especially already compressed data. Anyone that has even a tiny bit of knowledge of how compression actually works will tell you this. You just can't turn several gigs of data into mere kbs. Someone linked to the KGB Archiver page - firstly, if you read the tests, the best it could do was 600kilobytes from a 3megabyte file. Thats a 5:1 compression. So, now take the an Office 2007 DVD. I'm not sure how big it is, but assuming the fact its on a DVD its obviously more than 700mb. But we'll use 700mb as a baseline. 700 / 5 is 140mb. 140mb, a lot more in contrast to those saying its a few mb. Thats assuming that the files aren't already compressed, the Office 2007 install is 700mb AND the compression algorithim is able to compress at the same rate for the different file types and bigger files.
But don't take my word for it, download some of these. I tried it, against my knowledge and logic, and NONE of them worked. Which leads me onto the next point - with all this evidence against it, how can these files still compress and uncompress to the certain amounts, surely its working with data, right? Yes. Null byte data. Look at the files with a hex editor and you'll see, null bytes. Thats how the "compression" and "uncompression" of this scam works. The KGB Archiver compression looks for patterns, and what a nice pattern null bytes are. If you can't understand why this is, you shouldn't be trying to debate this topic.
If you still don't believe me, fine, be ignorent. Through fact and personal experience I can tell you this is a crock of ****. Oh btw, do a netstat while your uncompressing with KGB Archiver, it does some nice background network connections. I don't know what they are for, but thats fairly unsolicited coming from a compression program.