# what type of internal memory do most digital cameras use? (not talking about SD cards or other removable storage)

I am looking into something for work and I need to know what type of flash-memory storage is most common in digital cameras so we can look into how to properly eradicate all of the data on the cameras's internal storage. I understand that there is more than likely not just one type of flash-memory in all cameras, but this is proving to be a difficult question to find the answer for, as all of my searches come back with information pertaining to the SD card for the camera. I am also trying to find out if a simple overwrite will be sufficient to ensure the data is permanently erased. these questions are aimed at digital cameras that were manufactured from 7 years ago to the present.

  -Thank you in advance!

• It's most likely to be either simple embedded NAND/NOR flash or something like eMMC (which is much like an SD Card, but its a soldered IC not a card in a socket). – brhans Mar 8 '16 at 17:44
• I would think if you really wanted to remove any information on the camera, it would involve destroying so much of the camera that you might as well just indiscriminately obliterate the entire camera. Thermite or blasting caps might be worth investigating. I take no responsibility for your injuries. – uint128_t Mar 8 '16 at 22:09
• A sledgehammer and safety glasses should be quite sufficient. Or a trip through a kiln/furnace, in a suitable crucible so that you don't get camera all over the kiln/furnace. – Ecnerwal Mar 9 '16 at 5:16