Method of recording and reproducing data on and from optical disc

摘要

A method, device and computer program product for recording data on an optical disc while being encrypted using an encryption code. The encryption code is selectively recorded in a predetermined region of the optical disc. The encryption code is read from the predetermined region, and data read from the optical disc is decrypted and reproduced on the basis of the read encryption code. The encryption code can be randomly generated. When the optical disc is one of DVD-R/+R/-RW/+RW, the predetermined region is a first buffer zone disposed in a lead-in area of the optical disc. When the optical disc is DVD-RAM, the predetermined region is a reserved region subsequent to a first DMA disposed in a lead-in area or a reserved region subsequent to a fourth DMA disposed in a lead-out area of the optical disc.