Patent ID: 8352977

Claim:
An information processing apparatus comprising: a signal analysis unit configured to detect a moving picture of a characteristic playback domain from an input AV stream; a controller configured to independently generate a clip mark referenced by a playlist during reproduction of the AV stream, the clip mark having a time stamp of a playback start point of said playback domain, a duration of said playback domain and a system time clock information identifying a time-axis corresponding to the clip mark, the controller generating a clip mark identification information identifying a type of the clip mark; an acquisition unit configured to acquire extension data from the signal analysis unit, the extension data specifying special reproduction of said playback domain to be performed based on contents of the extension data, the controller appending said extension data acquired by said acquisition unit to said clip mark; and a writing unit configured to record said clip mark and clip mark identifying information on an information recording medium, the clip mark and the clip mark information being included in a clip information file corresponding to the AV stream, wherein the recording medium contains the clip mark, the clip mark identification information and the AV stream.