Patent ID: 7936877
Filing Date: 2011-05-03
Classification: G11B

Abstract:
1. A data recording device, comprising: reception means for receiving content data sent from a data transfer device; secondary recording medium drive means for recording the content data in a secondary recording medium; determining means for determining if a compression system of the content data and a compression system of the secondary recording medium are equal, and for determining if the bit rate of the content data is less than or equal to the bit rate of the secondary recording medium; adding means for, when it is determined that the compression system of the content data and the compression system of the secondary recording medium are equal and that the bit rate of the content data is less than or equal to the bit rate of the secondary recording medium, increasing the data per content unit by adding dummy bits to the content data; compression means for compressing the content data when it is determined that the compression system of the content data and the compression system of the secondary recording medium are not equal, and for compressing the content data when it is determined that the bit rate of the content data is greater than the bit rate of the secondary recording medium; decrypting means for converting content data from an encrypted state into a non-encrypted state; and recording control means for recording the content data in the secondary recording medium.