'Write Once' SD card launched by Sandisk, can preserve data for 100 years SanDisk has created the first write-once SD memory card after over a year of talking about it. The WORM (Write Once Read Many) cards cannot be altered or deleted and are designed for information that must be kept intact, such as electronic voting records and police work.
Details at http://moourl.com/bj7la [Non-text portions of this message have been removed]