Abstract: A terminal device can connect to a first network whose communication speed is high or whose communication fee charged according to an amount of communication is low and a second network whose communication speed is lower than that of the first network or whose communication fee charged according to an amount of communication is higher than that of the first network. The terminal device first data with a large amount of data through the first network and stores the first data. Also, the terminal device second data with an amount of data smaller than that of the first data through the second network and stores the second data. The terminal device determines a connection state of the network and a storage state of data and controls reception of data used to output contents on the basis of the determination result.

Abstract: On an information record medium, there are recorded: a plurality of content informations; and a plurality of play list sets each including a plurality of play list informations defining reproduction sequence thereof. The plurality of content informations, whose reproduction sequences are defined by the plurality of play list informations in a same play list set, are different from each other in reproduction functions required for an information reproduction system to reproduce the plurality of content informations and are adapted to at least partially construct titles, each of which is a logically united information unit and which are same to each other. Required function information indicating the reproduction function required for the information reproduction system is further recorded for each of the plurality of play list informations.

Abstract: A terminal device can connect to a first network whose communication speed is high or whose communication fee charged according to an amount of communication is low and a second network whose communication speed is lower than that of the first network or whose communication fee charged according to an amount of communication is higher than that of the first network. The terminal device receives first data with a large amount of data through the first network and stores the first data. Also, the terminal device receives second data with an amount of data smaller than that of the first data through the second network and stores the second data. The terminal device determines a connection state of the network and a storage state of data and controls reception of data used to output contents on the basis of the determination result.

Abstract: Provided is an information recording apparatus which, in a state where the content of moving picture image information, etc. can be prevented from being inadvertently recognized by the user due to inadvertent presentation to the user of a relevant representative picture image, enables recording the respective information into a recording medium. A reproduction list PL that is to be reproduced is not only recorded into an optical disc 1 but is there also recorded in it a reproduction list display prohibition flag PHF indicating at least whether limiting the display of a representative picture image that represents the content of the reproduction list PL.

Abstract: Provided is an information recording apparatus which, in a state where the content of moving picture image information, etc. can be prevented from being inadvertently recognized by the user due to inadvertent presentation to the user of a relevant representative picture image, enables recording the respective information into a recording medium. A reproduction list PL that is to be reproduced is not only recorded into an optical disc 1 but is there also recorded in it a reproduction list display prohibition flag PHF indicating at least whether limiting the display of a representative picture image that represents the content of the reproduction list PL.

Abstract: An information reproducing apparatus (200) is provided with: a displaying device (353) for displaying a main picture and a sub-picture of a first type whose display can be started at a desired reproduction time point; a storing device (355, 360) for storing an identification number of the sub-picture; a first controlling device (354, 359) for destroying the identification number of the sub-picture, if a current reproduction time point of the main picture is beyond a range of reproduction time points in which the sub-picture is to be displayed; and a second controlling device (354, 359) for continuing to store the identification number of the sub-picture, if the current reproduction time point of the main picture is not beyond the range of reproduction time points in which the sub-picture is to be displayed.

Abstract: A hologram recording apparatus (300) is provided with: a recording device (100) for recording record information into a hologram recording medium (1); a measuring device (325) for measuring a time elapsed from when the recording of the record information is stopped to when the recording of the record information is restarted; a first controlling device (354) for controlling the recording device to multiplex-record the record information, if the measured elapsed time is shorter than a time length in which the record information can be multiplex-recorded; and a second controlling device (354) for controlling the recording device not to multiplex-record the record information, if the measured elapsed time is longer than the time length in which the record information can be multiplex-recorded.

Abstract: A reproducing apparatus (100) is provided with: a detecting device (102) for detecting, when one title out of a plurality of titles is reproduced, a title unbound application associated with another title out of the plurality of titles under the condition that the one title is composed of a BD-J object; and an executing device (102) for executing the detected title unbound application. According to the reproducing apparatus, even if the one title is reproduced without reproducing another title which is to be reproduced before the one title, the title unbound application associated with the other application is executed. Thus, it is possible to appropriately reproduce the one title.

Abstract: An information record medium comprises video information for indicating a main-video, sub-video information for indicating a sub-video which can be displayed at least partially over the main-video, and sub-video control information including (i) a plurality of types of control information elements for display control of the sub-video information in various methods set in advance and (ii) type indicating information to indicate presence or absence, or effectiveness or ineffectiveness of the control information elements by each of the types.

Abstract: On an information recode medium, a whole stream containing a plurality of partial streams each consisting of content information including still picture information is multiplexed and recorded on packet basis. The information record medium includes a file for storing object data consisting of a plurality of packets each containing a fragment of content information and a file for storing information defining the reproduction sequence of the object data. Furthermore, the information record medium includes an object information file for storing classification information indicating whether each object data corresponds to a first encoding method or a second encoding method.

Abstract: An information recording medium on which a plurality of stream groups are multiplexed and recorded by a unit of packet, which is a physically accessible unit, each of the stream groups including one video stream, the information recording medium provided with: an object data file for storing object data which comprises a plurality of packets; and an object information file for storing correspondence definition information for controlling the reproduction of the object data. The object data is divided by a divisional unit in at least one portion of a reproduction section, which is provided with the plurality of packets and corresponds to one of the plurality of stream groups. The object information file stores unit address information indicating an address of each of divisional units, as the reproduction control information.

Abstract: Provided is an information recording apparatus which, in a state where the content of moving picture image information, etc. can be prevented from being inadvertently recognized by the user due to inadvertent presentation to the user of a relevant representative picture image, enables recording the respective information into a recording medium. A reproduction list PL that is to be reproduced is not only recorded into an optical disc 1 but is there also recorded in it a reproduction list display prohibition flag PHF indicating at least whether limiting the display of a representative picture image that represents the content of the reproduction list PL.

Abstract: A series of content information; menu information, which is to be displayed with the content information during reproduction of the content information; and play list information for defining reproduction sequence of the content information by a unit of item, which constitutes the content information and which is accessible upon reproducing, are recorded on the information record medium. The play list information includes: item information for specifying each item which constitutes the content information; and slave item information for specifying the menu information corresponding to the each item as a slave item.

Abstract: A series of content information; menu information, which is to be displayed with the content information during reproduction of the content information; and play list information for defining reproduction sequence of the content information by a unit of item, which constitutes the content information and which is accessible upon reproducing, are recorded on the information record medium. The play list information includes: item information for specifying each item which constitutes the content information; and slave item information for specifying the menu information corresponding to the each item as a slave item.

Abstract: A hologram recording apparatus (300) is provided with: a recording device (100) for recording record information into a hologram recording medium (1); a measuring device (325) for measuring a time elapsed from when the recording of the record information is stopped to when the recording of the record information is restarted; a first controlling device (354) for controlling the recording device to multiplex-record the record information, if the measured elapsed time is shorter than a time length in which the record information can be multiplex-recorded; and a second controlling device (354) for controlling the recording device not to multiplex-record the record information, if the measured elapsed time is longer than the time length in which the record information can be multiplex-recorded.

Abstract: An information record medium contains video information indicating a main-video, sub-video information indicating a sub-video which can be displayed at least partially over the main-video, and sub-video control information including sub-frame range information specifying at least a part of the region in the sub-video as a sub-frame and sub-frame control information for controlling display of a sub-frame displayed over the main-video. The sub-frame control information includes dynamic control information includes dynamic control information for dynamically displaying the sub-frame.

Abstract: A hologram recording apparatus (300) is provided with: a recording device (100) for recording record information into a hologram recording medium (1); a measuring device (325) for measuring a time elapsed from when the recording of the record information is stopped to when the recording of the record information is restarted; a first controlling device (354) for controlling the recording device to multiplex-record the record information, if the measured elapsed time is shorter than a time length in which the record information can be multiplex-recorded; and a second controlling device (354) for controlling the recording device not to multiplex-record the record information, if the measured elapsed time is longer than the time length in which the record information can be multiplex-recorded.

Abstract: An information recording medium is provided with: a file for storing object data which constitutes a series of content information, such as picture information or video information and audio information, and a play list information file for storing play list information which defines a reproduction sequence of the object data by a unit of play list. The information recording medium is further provided with a disc information file for storing a plurality of title play lists including information for specifying the play list information which defines the play list to be reproduced, Pre command information and Post command information, which indicate commands to be executed before and after the reproduction, respectively, based on the play list information.

Abstract: A hologram recording apparatus (300) records record information into a hologram recording medium (100) on which a hologram recording layer (11) and a position information recording layer (13). The hologram recording apparatus is provided with: a first recording device (101) for recording the record information into the hologram recording layer; and a second recording device (121) for setting an area portion of the position information recording layer in a recorded state, the area portion of the position information recording layer corresponding to an area portion of the hologram recording layer in which the record information is recorded.

Abstract: An information recording medium (100) on which there are recorded: a series of content information which includes an image portion which can be a background image; button information (301) for defining a button menu which allows an operation as for the content information and which is displayed during the reproduction of the content information; and play list information (120) for defining reproduction sequence of the content information by a unit of item, which constitutes the content information and which is accessible upon reproduction, the button information including a plurality of button pages (301p) each of which can constitute the button menu and whose display can be changed to each other.