Abstract: A diskette storage box for audio-visual or computer media disks includes a front cover and a rear cover having a disk retaining mechanism that includes plural first surfaces that extend upward from the rear cover and inward towards a center position aligned with a center of the disk. The disk retaining mechanism includes a set of riser tabs that extend up from the first surfaces and each riser tab includes a respective retaining tab that retains the disk. The disk retaining mechanism also includes a riser tabs limiting device that is coupled to the riser tabs and that limits movement of riser tabs while being depressed for releasing a retained disk.