Incredibly small yet durable, the SD Memory Card is no bigger than a postage stamp. But this miniature marvel holds an enormous amount of data. A 512M

Incredibly small yet durable, the SD Memory Card is no bigger than a postage stamp. But this miniature marvel holds an enormous amount of data. A 512MB SD Card can store up to 7,000 JPEG images, up to 3 hours of MPEG4 Video and up to 11 hours of digital music.