Mode Z and Binary files

[bigstar]

I'm not sure if having it based on ASCII/BINARY files is such a great idea, there are lots of binary files that will compress nicely. I actually did some tests on some mp3s and mpegs, as well as some avi's and all of them compressed alittle bit. One clear except would be archived files, zip, rar, etc.

Perhaps it should be based on file type which user could define.

I doubt this will make it into the next release. However it could probably be added into the release after that.