For purely experimental reasons, I want to erase my disk with the 35 pass erase option. A.k.a I'm going to reinstall it again for my own use again, I just want to do it for...fun. I've already done this 4 times, just never with the 7 or 35 pass erase. So I know all about backups, etc. I was just wondering exactly how long will this take? The only thing I could find was "possibly more than a day" which is slightly vague. Though I've purposely chosen to do this during a time when it can take as long as it wants, as in, this is a time when I don't need my computer. I plan on doing this Tuesday as I'll be gone from 7am-10pm anyways. So I guess what I'm wondering is has anyone done the 35 pass option here, and is there anything more specific than "more than a day" that someone can tell me?