Apple Users

If you toss an mkfs in before you dd to the same target drive every time you aren't making multiple copies, just one latest copy. That's what I grew up with (straight nightlies to tape, a simple cron job actually - our admin insisted "simple is best&quot so I learned to just save copies of my data if I thought I might need to roll back. If I didn't make a copy, or I trashed a file, it was gone and oh well shouldn't have done that.

I get Time Machine, I use it, I like it - but I'm still in the "save a copy" and "Empty Trash is forever" mindset. Never actually used it to roll back, just to copy my stuff from my G4 that one time. I also much prefer H-gate manual transmissions over flappy-boxes and especially slush-o-matics if that says anything..