I have a big problem because I accidentially formatted my hard drive (unrecoverable) and this way lost many photos and videos. I took them with my digital camera using an SD-card. I think the files are now overwritten at least one time on the SD card.
Is there any chance to get such overwritten data from an SD card? I know that such recovery is possible with hard drives (up to the last seven overwrites) by opening and reading them with a very expensive device.
So does such a device (special card reader or whatever) exist or are there companies which can do such a recovery?