Thanks for that ususla. I visited the site and it claims to recover normally deleted items via the recycle bin. I.e. files that have been dumped from the recycle bin but not otherwise overwritten. These fellows here are claiming a video file can be recovered well enough to determine if its child pornography after being overwritten several time. The overwrite might be in the normal course of using the computer or deliberately by a program which targets that file.

I asked this fellow if his program could pull up a single letter file after it had been overwritten several times and was given a cocky answer. No pun intended there.

Most people interested enough to find out know that a file is never deleted via the recycle bn. The space is simply made available to be written over. However a "cleaning" program can target that specific file for you and overwrite it immediately with random code and do it multiple times if you desire. Its been claimed here that even when overwritten a video file, with its massive amount of data, could be restored enough to view it well enough to be used in a court of law as proof of ownership of child porn.

Like recycled steel made into a car its impossible to tell it used to be a tin can. In my humble opinion anyway.