An apparatus and method for encrypting content based on an identifier (ID) of a storage device and a decrypting apparatus and method corresponding thereto. The content recording device includes a storage device interface to receive a first primitive ID and a second primitive ID to identify first and second portions provided in a storage device from the storage device, and a processor to generate a media ID that is a unique ID of the storage device using the first primitive ID and the second primitive ID and to encrypt one or more contents using an encryption key generated using the media ID, wherein the storage device interface provides the content encrypted by the processor to the storage device.