Hey everyone im going to be purchasing a p180, and traded in my Macbook pro to best buy (4-5 years old and i get about $550 credit still ) my question is, i have a disk i created a while back that securely wipes drives. It a pass or 1's and 0's from what i understand. What im wondering is how many passes is considered enough? i believe it offers up to 24 but 24 passes takes days to complete. Also there is some other option, i forget exactly what its called but is something pattern. Also that being said i can no longer find my disk, i know it was a program downloaded off of Freeware Files - Free Software Downloads Does anyone have a tool the recommend or consider to be the best?