WORM--how's that for an unfortunate acronym? It's the one that memory maker SanDisk went with for their latest card type. It stands for Write Once Read Many, a digital memory card that cannot be erased--a format the company says is ideal for applications like police reporting, electronic voting, and court testimony.

The SD WORM is designed to replace traditional analog technologies like audio tape and film--something that past memory cards have been unable to do, thanks to their inability to prevent data tampering. This new format, on the other hand, locks as soon as a recording is made.

The card also has a 100-year shelf life, in the appropriate conditions.

SD WORM cards are available now in 128MB capacities.