Abstract: To realize a recording/editing apparatus that does not need to read the management information every time a BD medium is mounted or recording/editing is performed, the present invention provides a recording/editing apparatus that controls recording of an AV stream and a plurality of management information pieces onto a readable and writable recording medium, and editing of the AV stream and the management information pieces recorded on the recording medium, the management information pieces each defining items used for playback control of the AV stream, the recording/editing apparatus comprising: a recording unit operable to record definition count information onto the recording medium, the definition count information indicating, for each of the items, a count of definitions that have been already provided in the corresponding item; and a permitting unit operable to permit the recording and the editing upon a request, on a condition that none of values of the definition count information has reached a maximu

Abstract: To realize a recording/editing apparatus that does not need to read the management information every time a BD medium is mounted or recording/editing is performed, the present invention provides a recording/editing apparatus that controls recording of an AV stream and a plurality of management information pieces onto a readable and writable recording medium, and editing of the AV stream and the management information pieces recorded on the recording medium, the management information pieces each defining items used for playback control of the AV stream, the recording/editing apparatus comprising: a recording unit operable to record definition count information onto the recording medium, the definition count information indicating, for each of the items, a count of definitions that have been already provided in the corresponding item; and a permitting unit operable to permit the recording and the editing upon a request, on a condition that none of values of the definition count information has reached a maximu

Abstract: According to the present invention, a change point between a content portion and a non-content portion is located by finding an audio gap in given audio data. As a parameter for locating the content/non-content change point, global_gain of the AAC standard is used. Then, the content/non-content change point can be located without decoding audio data.

Abstract: An information recording and reproducing apparatus is capable of dubbing a video and audio signal onto a digital recording medium in a short time, using a control signal recorded on an analog recording medium together with the video and audio signal. The information recording and reproducing apparatus includes a control signal detecting part for detecting a control signal recorded on the analog recording medium, a control part, and the like. When a dubbing instruction is input, the control part instructs a recording part to start a dubbing operation of recording the video and audio signal reproduced by a reproducing part onto the digital recording medium, and during the dubbing operation, when a non-recorded region where the control signal is not recorded on the analog recording medium is detected, the control part instructs the recording part to temporarily stop recording onto the digital recording medium.