A system and method for permitting the rental of digitized content such as
music from a kiosk includes a flash memory device that is insertable into
the kiosk. The kiosk derives a content key from a media key block and a
media ID on the flash memory device, and then encrypts the content using
the content key and records the content on the flash memory device. The
flash memory device can then be removed and engaged with a player-recorder
which decrypts the content and plays the content. When it is desired to
check the content back in, the flash memory device is engaged with the
kiosk and the content is erased. Importantly, the media ID of the flash
memory device is altered during check in, such that if the user saved the
content prior to check in, the content, if recorded back onto the flash
memory device after check in, could not be decrypted.
