Hooking up my ext hdd!

[Burnie Burnerson]

This weekend I'm hooking up my ext hd. I just wanted to get some opinions on file compression. On NTFS what types of files do you guys typically compress? Like, Should I? Could I? compress in my installed program files folder? When you exe those files does it slow you down? Or, would you? could you? compress video files? Do you save much memory compressing video? And one more thing that I'm curious about. Do you need to compress iso's or cue\bin or winrar\ace files? (I think they're compressed already ) Thanks.

Salute and silence for rememberance day