Um.... Perhaps hammerspace?

Superchunk is correct. When your hard drive (SD card, floppy, etc.) has a file system, it is basically a section of the memory is basically a large list of all the files and the address on the disc. So basic deletes only remove the pointer to those files (really quick to write less than 1kB of data). If you are truly attempting to get rid of the data, a true full format is required or the other non-standard way would be to fill your hard drive up with duplicate data (essentially rewriting all the non-allocated memory).

in the air

Actually, even if you write all 0's to the memory, the police can still recover what is there due to magnitic history if they have the write tools. To truely erase something, you have to follow the NSA standards which are something like Write 1's, Write 0's, (repeat 3x) then some alternating 1/0 thing and repeat, finally end with all 0's.

or you could just burn the sucker.

Actually, with modern hdds, a single write is all that is generally needed.

'According to the 2006 NIST Special Publication 800-88 (p. 7): "Studies have shown that most of today’s media can be effectively cleared by one overwrite" and "for ATA disk drives manufactured after 2001 (over 15 GB) the terms clearing and purging have converged."' (Link to PDF)

first it goes in the recycle bin
then on Wednesday the truck comes and picks up your recycle bin
which it takes to the dump
where it stays for a while, while degrading back into the cyber-earth

so you see all those new fancy game saves are actually recycled game saves and data! :D

cool, well I guess that amazing capability hasn't made it over to the flash that we use on our hardware. I know they used to follow the same standards for clearing, but I only check out the standards when I'm forced to for a project and we've only used flash recently.

i got a question, what and where did "WINNER WINNER CHICKEN DINNER" come from?

I think it was from the movie 21 lol. I got it from a friend on PSN though.