I'm trying my best to understand every ones replies on the last thread. After discussing this eraser thing with one of my friends - he decided to do his own experiment with this friends. This was a much more thorough experiment than what I did. I couldnt go there and watch because it was conducted in Korea!! They set up 7 Test Computers : 10 GB Harddisk Freshly Formatted XP Pro SP2 ( nlited - no caching enabled. ) Erasers Used : Cyberscrub, R-Wipe, XPprivacy Pro, Privacy Guardian, East-Tech Eraser, Heidi Eraser, Window Washer. Recovery Tools Used : Data Recovery Wizard Professional, Recover My Files, D.A.R.T. XP Data Recovery, Stellar Phoenix. All softwares were Paid Versions. All 7 computers had a unique eraser but all recovery tools were tested on all 7 computers. At no time was two recovery tools installed at the same time. Highest available erasing method ( except for Gutmann 35 pass) was selected Before doing anything Wipe Free Space feature was performed whenever it was available on a particular Eraser. The rest was simple. They downloaded a video file and an executable file on each of the 7 computers. They played the video and checked the exe was installable. They then securely deleted both files from each of the computers with their respective erasers. They then tested the recovery tool. Different files were downloaded for each of the recovery tool. Result : Every single time, the recovery tools managed to recover the securely deleted files. The video was still playable and the exe was still installable. Any insight into this? Did they do something wrong? These guys are not interested in bashing any softwares. They just want to find a secure and efficient eraser that they feel safe to use!! Me too!!