Abstract: A data recording apparatus is provided with: a recording device which includes a data recording region having data recorded in a predetermined unit, a first management data region having management data with respect to the data recorded in the data recording region, stored in the predetermined unit, and a second management data region having the same management data as that stored in the first management data region, stored in the predetermined unit; a control device which performs, in the predetermined unit, control processing including a record processing for recording data in the data recording region and an update processing for updating management data in the first management data region and the second management data region; and a memory which stores status data indicating a control processing status in the predetermined unit by the control device.

Abstract: When a library of content read from a playback section 2 of a CD, etc., is constructed in a record and playback section 3 comprising a large-capacity storage unit such as a hard disk, the content is read from the playback section 2 at speed n times that the normal speed and is recorded on the hard disk B at high speed and is played back at constant speed lower than the record speed. At the time, a system microcontroller 31 enables the user, etc., to operate a playback command button, etc., within the range of the program information pieces which have been recorded on the hard disk B, and controls a hard disk drive A so to perform operation responsive to the operation of the user, etc.

Abstract: In a case where there occurs an even of interrupting recording operation such as a power cut out or a communication error, while creating a library in the hard disk by a recording/reproducing section 3, a system control microprocessor 31 controls to automatically delete a halfway file that is not completely recorded, thereby preventing the halfway recorded file from being accumulated in the hard disk B.

Abstract: A system control microcomputer 31 of a control section 3 controls to automatically make a temporary copy in a temporary area B of a recording/reproducing section 2, and reproduce by reading this temporary copy, when an optical disc 12 is inserted for reproduction, and invalidate or delete the previous temporary copy, when the optical disc 12 is ejected.

Abstract: In an information reproduction apparatus, a recording/reproducing unit reproduces a plurality of program data on a recording medium. The program data and identification information for the program data are stored on the recording medium. An operation/display unit displays the identification information and reproduction frequency information, and allows an user to select one of the program data to be deleted. An controller for controlling the recording/reproducing unit in accordance with an instruction from the operation/display unit. The controller calculates the reproduction frequency information for each of the program data by employing a variety of information obtained by reproducing each of the program data. The controller controls the recording/reproducing unit to erase from the recording medium the program data identified by the operation/display unit.

Abstract: Information can be recorded in an easy-to-use form by appending title information thereto. When audio data is reproduced from an optical disc, such as a CD, and recorded into a hard disk, title information corresponding to the audio data is searched through a database region in the hard disk, and the retrieved title information is appended to the audio data and recorded into the storage region. When the corresponding title information is not retrieved, flag information indicating “no title information” is appended to the audio data so as to be recorded. When updated title information is provided by way of an optical disc or the like, by additionally recording the updated title information into the database region, the title information for the audio data indicated as “no title information” is automatically searched, and when the corresponding title information is found, the title information thus found is appended to the audio data and recorded into the storage region.

Abstract: A method and an apparatus for performing high-quality read and write operations through a simple operation without being affected by an interruption even when the interruption has occurred in the course of a read/write operation between information storage media. When an interruption occurs in the course of reading program information stored on an optical disc to write the program information onto a hard disk, the write status of the program information which has encountered the interruption and the information for identifying the program information are stored on the hard disk. After the recovery from the interruption, read and write operations are restarted. Then, the program information capable of ensuring the continuity with the program information which has been properly written on the hard disk prior to the interruption is determined in accordance with the write status of the program information which has encountered the interruption and the information for identifying the program information.

Abstract: An improved switchover device comprises input terminals connected with information sources, first and second output terminals connected with information processing devices, switching elements for effecting switchover connection between the input terminals and the output terminals and a switchover control circuit for controlling the switching elements. During a process in which information from one information source is being supplied to the information processing devices and, once there is an interrupt request for supplying information from another information source to the information processing devices, the switching element between the input terminal and the output terminal is made OFF, while the switching element between the input terminal and the output terminal is made ON. At this time, the switching element between the input terminal and the output terminal is kept ON.

Abstract: An information recording apparatus for recording content information on an information recording medium comprises a main information recording area on which main information to be reproduced is recorded, and a plurality of content information recording areas on which content information to be reproduced to indicate contents of the main information is recorded. The apparatus comprises a recording device, a confirming device and a control device. The recording device records the content information on a part of the plurality of content information recording areas. The confirming device confirms a recording result of the content information thus recorded. The control device controls the recording device, only when the recording result is confirmed to be successful, so that content information that is identical with the content information recorded on the part of the content information recording areas can be recorded on the other part of the content information recording areas.