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We all know that if you want to completely delete files from HDD, you have to use a special erase algorithm in order to make it impossible to read it back. But what with the memory cards? Do they need the same algorithms to ensure that no one could read it back? (it has a completely different structure to store data, and I don't know what the case here with secure delete)
Plus addon to my question: Memory cards do not delete the data if you press delete on the files, it just updates the flags belongs to the deleted files. However if I use a program to put zeros on that location, will it completely delete the card's content?
Plus add-on: HDD-s do not need nowadays to wipe or secure delete them more than once. A simple delete with filling zeros would enough because today's HDD are very crowded and there won't be any ramining magnetic "info" after you delete it. – daveny – 2009-12-11T13:05:55.053