To provide a camera and an information processor capable of writing data on a recording medium and erasing data recorded on the recording medium, even if the write protection switch of the recording medium is on.

The electronic camera 1 can record data on the recording medium 131 and erase (delete) data recorded on it by setting at the side of the electronic camera 1, even if a protection switch 132 of the recording medium 131 has been set to a prohibition position. More specifically, the write protection of the recording medium 131 set by the protection switch 132 is canceled by the setting at the side of the electronic camera 1.