ErAce

ErAce is software that will over write hard drive 1-100 times. So it fulfils strictest security standards i.e. DOD 5220.22-M. In that way it is impossible to recover data. If You delete files and empty recycle bin it is possible to recover data with recovery software. ErAce will write whole hard disk and put it to zero at last cycle. After process hard drive looks like it was just came out of factory.
ErAce works on Pentium or higher and AMD equivalent systems. It works even Intel based Mac computers. It needs 128 Mb of memory.

With ErAce you can recycle, sell or throw away hard drive carefree. There is no way other people to recover data, pictures or documents from your disk