Something terrible happened: I was touring and shooting in the acropolis of Pergamon, and suddenly the battery died. Apparently it died while the camera was busy writing a RAW file and its b+w jpeg sibling.
Upon inserting a charged battery, I saw the ominous "SD Card locked" prompt. I took the card out, moved its locking slider to and fro a few times and reinserted it in its slot, but nothing changed. Trying to view my shots was not possible. The M8 told me that there were no valid images to display, although I could swear I had at least 150 RAW files on that card.
Upon returning home, I was unable to read the card with any of my card readers; its image does not mount on the desktop. Is there any other way to rescue those images other than formatting the card in the M8, and then trying to save them with Rescue Image software, or equivalent?