Abstract: An optical disc apparatus comprises: a data reading unit for reading VTS_TMAPT and TMU; a preliminary search address calculating unit for calculating, based on the read data and a search time designated by a user, address of a destination VOBU to which an optical pickup is to be moved; a VOBU reading unit for reading a cell time, a VOBU time and video data reproduction time of the destination VOBU; a VOBU determining means for determining whether the designated search time belongs to reproduction time zone of the destination VOBU; and a search address calculating unit for calculating, based on VOBU_SRI data of the destination VOBU, address of a next destination VOBU when the designated search time is determined to be outside the reproduction time zone of the destination VOBU. This disc apparatus can accurately find a point of the designated search time from which to start reproducing video data.

Abstract: A DVD reproducing apparatus having an A-B repeat function of repeating reproduction between point A set on a VOBU of plural VOBUs and point B set on a VOBU behind the point A, includes an NV_PCK storage unit that stores an address data stored in an NV_PCK of the VOBU where the point A and the point B are set, a judgment unit that judges whether or not a V_PCK is included in the VOBU where the point A is set, an acquisition unit that acquires an address data of a nearest VOBU before the VOBU where the point A is set and having a V_PCK if the judgment unit judges that a V_PCK is not included in the VOBU where the point A is set, and a reproduction unit that reproduces an image of a VOBU based on an address data acquired by the acquisition unit.

Abstract: A disk reproducing apparatus capable of reproducing data that is recorded on a DVD-Audio, includes a data reproducing unit which reproduces the data, a displaying unit, and a controlling unit which controls the data reproducing unit and the displaying unit. Preferably, the controlling unit, in reproducing a group of data, causes the data reproducing unit to reproduce in seriatim respective data in subgroups, after data in each subgroup is reproduced, decides whether the subgroup is a last subgroup in the group, if the subgroup is the last subgroup, decides whether a menu display forced is indicated, if the menu display forced is indicated, forms and displays a menu screen based on menu data in management data, if the menu display forced is not indicated, decides whether the menu data is present, and if the menu data is present, forms and displays the menu screen based on the menu data.

Abstract: An optical disc apparatus comprises: a data reading unit for reading VTS_TMAPT and TMU; a preliminary search address calculating unit for calculating, based on the read data and a search time designated by a user, address of a destination VOBU to which an optical pickup is to be moved; a VOBU reading unit for reading a cell time, a VOBU time and video data reproduction time of the destination VOBU; a VOBU determining means for determining whether the designated search time belongs to reproduction time zone of the destination VOBU; and a search address calculating unit for calculating, based on VOBU_SRI data of the destination VOBU, address of a next destination VOBU when the designated search time is determined to be outside the reproduction time zone of the destination VOBU. This disc apparatus can accurately find a point of the designated search time from which to start reproducing video data.

Abstract: A DVD reproducing apparatus having an A-B repeat function of repeating reproduction between point A set on a VOBU of plural VOBUs and point B set on a VOBU behind the point A, includes an NV_PCK storage unit that stores an address data stored in an NV_PCK of the VOBU where the point A and the point B are set, a judgment unit that judges whether or not a V_PCK is included in the VOBU where the point A is set, an acquisition unit that acquires an address data of a nearest VOBU before the VOBU where the point A is set and having a V_PCK if the judgment unit judges that a V_PCK is not included in the VOBU where the point A is set, and a reproduction unit that reproduces an image of a VOBU based on an address data acquired by the acquisition unit.

Abstract: A DVD reproducing apparatus includes a key information storing unit that stores key information for decoding and reproducing a coded data recorded in the DVD, a reproducing unit that reproduces the data recorded in the DVD, a coding determining unit that determines whether the data recorded in the DVD is coded data in reproducing the data recorded in the DVD by the reproducing unit, an acquiring unit that acquires key information for decoding and reproducing the coded data by searching the key information storing unit when it is determined that the data recorded in the DVD is coded data, a decoding unit that decodes the coded data recorded in the DVD by using the key information, and a display controlling unit that displays a predetermined display indicating the coded data at a predetermined display section when the coded data recorded in the DVD which was decoded is reproduced.

Abstract: A disk reproducing apparatus capable of reproducing data that is recorded on a DVD-Audio, includes a data reproducing unit which reproduces the data, a displaying unit, and a controlling unit which controls the data reproducing unit and the displaying unit. Preferably, the controlling unit, in reproducing a group of data, causes the data reproducing unit to reproduce in seriatim respective data in subgroups, after data in each subgroup is reproduced, decides whether the subgroup is a last subgroup in the group, if the subgroup is the last subgroup, decides whether a menu display forced is indicated, if the menu display forced is indicated, forms and displays a menu screen based on menu data in management data, if the menu display forced is not indicated, decides whether the menu data is present, and if the menu data is present, forms and displays the menu screen based on the menu data.