In modern photographic equipment, memory cards are usually used to store captured photos and video information. Among digital cameras, phones, tablets, video recorders, and other devices, cards are the most widely used. Use of professional SLR cameras. The memory card is designed for use in photographic equipment, and only memory cards in the format are used in the equipment. Any memory card is a storage medium, somewhat similar to a flash drive. The reasons for losing data from this medium may be different, divided into software, machinery and hardware. Software reasons that cause data loss include memory card overflow, accidental deletion or formatting, and virus attacks. When the controller fails or there are many bad storage units on the microcircuit, hardware reasons should be considered.