Abstract: An information processing apparatus includes a data processing unit configured to perform data processing on data read from a data recordable disc. The data processing unit performs a physical mark verification process for verifying whether or not a physical mark that is identification data unique to each of mother discs used when the disc was manufactured has been recorded on the disc, and a signature verification process for obtaining, from the disc, a token containing an electronic signature generated on the basis of a medium ID that is an identifier unique to each disc by a content providing server that provided the recorded content of the disc and for performing signature verification, and reproduces recorded content of the disc under a condition in which the recording of a physical mark in the physical mark verification process has been confirmed and signature verification in the signature verification process holds true.

Abstract: In a recording and reproducing apparatus having at least one program recorded to recording tracks on a recording medium, management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced on being loaded the recording medium to the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or a control signal recording tracks. therefore, to cover in the appended claims all such changes and modifications as fall within the true spirit and scope of the invention.

Abstract: In a recording and reproducing apparatus having at least one program recorded in recording tracks on a recording medium, a management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced when the recording medium is loaded in the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of a video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or control signal recording tracks.

Abstract: A disc player, which reproduces information recorded on a disc, reinitializes the signal processing circuitry of the disc player when a disc is ejected from the player. As a result, the need for an exterior reset switch, which must be pressed to reinitialize the signal processing circuitry, can be eliminated.

Abstract: In a recording and reproducing apparatus having at least one program recorded in recording tracks on a recording medium, a management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced when the recording medium is loaded in the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of a video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or control signal recording tracks.

Abstract: In a recording and reproducing apparatus having at least one program recorded to recording tracks on a recording medium, management database is recorded on the recording tracks with the program so as to form a management database recording field. The management data is reproduced on being loaded the recording medium to the recording and reproducing apparatus to manage each program recorded on the recording tracks. In the case of video tape recorder, the management data is recorded on video recording tracks, audio recording tracks and/or a control signal recording tracks. therefore, to cover in the appended claims all such changes and modifications as fall within the true spirit and scope of the invention.

Abstract: An X-Y device and a pair of trigger switches provide user control of a disc reproducing apparatus that reproduces discs which include audio data, video data, or both audio and video data. The reproduced video data is presented on a display. The reproducing device determines whether audio data, video data, or both audio and video data are stored on the disc, and interprets commands generated by the X-Y device and the pair of trigger switches as commands to reproduce the audio data, the video data, or both the audio and video data, respectively, when the display is powered on. When the display is powered off, the reproducing apparatus interprets commands generated by the X-Y device and the pair of trigger switches as commands to reproduce only the audio data.

Abstract: A disc reproducing apparatus for reproducing video image data and audio data recorded on a disc wherein control operation icons are displayed on the same display screen for displaying the reproduced video image and the operations represented by the displayed icons may be selected by the user of the apparatus by activating separate operation keys corresponding to the displayed icons.

Abstract: An optical disc player which is comprised of a reproducing unit for reproducing an information recorded on an optical disc, a display unit for displaying information associated with the information reproduced from the optical disc, a first memory for storing therein playback position information of the optical disc at timing point in which the reproducing operation of the reproducing unit is interrupted, a second memory for storing therein information displayed on the display unit, a holding circuit for holding the display information stored in the second memory when the reproducing operation is interrupted, and a control circuit for reading the reproducing position information of the optical disc from the first memory when the reproducing operation is resumed by the reproducing unit and controlling the reproducing operation of the disc on the basis of the playback position information of the optical disc.

Abstract: A disc player reproduces information recorded on a disc which has a disc type. Type identification circuitry determines the disc type of the disc. Reproduction circuitry reproduces the information stored on the disc. Disc ejection circuitry generates a disc ejecting signal when an externally-generated command is received. Control circuitry stops the reproduction circuitry in response to the disc ejecting signal. Reset circuitry initializes the disc reproduction circuitry when the disc ejecting signal is asserted and the type identification circuitry determines that the disc type is a first predetermined type, and inhibits the initialization of the disc reproduction circuitry when the disc ejecting signal is asserted and the type identification circuitry determines that the disc type is a second predetermined type. The disc type determined by the type identification circuitry can be stored in a memory.