Abstract: An information processing apparatus includes a recording unit and a control unit. The recording unit is capable of performing random access to a recording medium by a data block corresponding to a predetermined reproduction time period. The control unit is configured to cause, when partial data blocks in a plurality of data blocks which are recorded as a first file in the recording medium are edited, the recording unit to record the edited data blocks in a free space of the recording medium as a second file.

Abstract: A video and audio recording apparatus includes a recording medium that records base data therein and a control unit that starts and stops destructive editing in response to an instruction to start and stop destructive editing received through an operation unit. When part of the base data is deleted, the control unit writes, using management information for managing a physical area of the base data in the recording medium on the per predetermined recording unit basis, information indicating that the physical area in which the deleted part of the base data was recorded is defined as a reserved area on the per predetermined recording unit basis to the management information. When the edit data is input in response to the instruction to start editing, the edit data is overwritten into the physical area managed using the management information and defined as a reserved area on a preferential basis.

Abstract: In an editing apparatus; overwriting data used for insertion editing on base data, which is segmented into each picture including data having a predetermined unit of data amount X, and includes variable-length encoded real data, is variable-length encoded; each picture is sequentially obtained as a target picture, and regarding the target picture, if an amount of the overwriting data is equal to X, the overwriting data is handled as insertion data as it is, otherwise, insertion data is created by adding stuffing data to the overwriting data so that the amount of the overwriting data can be equal to X; a filler having the same amount as a filler of the base data is added to the insertion data having the same total amount as the real data; and the resultant insertion data is added onto the base data.

Abstract: A reproducing apparatus includes: a storing unit in which data is accumulated; a readout control unit that controls readout of the data from the storing unit; a cache that temporarily stores the data read out by the readout control unit; and a data transmission and reception control unit that reads out the data stored in the cache and outputs the data to an external apparatus on the basis of a data acquisition request input from the external apparatus, wherein the readout control unit reads out the data from the storing unit and outputs the data to the cache while increasing stepwise a size of the data to be read out from the storing unit from a first size, which is a minimum size set in advance, to a second size, which is a maximum size set in advance.

Abstract: A reproducing apparatus includes: a storing unit in which data is accumulated; a readout control unit that controls readout of the data from the storing unit; a cache that temporarily stores the data read out by the readout control unit; and a data transmission and reception control unit that reads out the data stored in the cache and outputs the data to an external apparatus on the basis of a data acquisition request input from the external apparatus, wherein the readout control unit reads out the data from the storing unit and outputs the data to the cache while increasing stepwise a size of the data to be read out from the storing unit from a first size, which is a minimum size set in advance, to a second size, which is a maximum size set in advance.

Abstract: A video and audio recording apparatus includes a recording medium that records base data therein and a control unit that starts and stops destructive editing in response to an instruction to start and stop destructive editing received through an operation unit. When part of the base data is deleted, the control unit writes, using management information for managing a physical area of the base data in the recording medium on the per predetermined recording unit basis, information indicating that the physical area in which the deleted part of the base data was recorded is defined as a reserved area on the per predetermined recording unit basis to the management information. When the edit data is input in response to the instruction to start editing, the edit data is overwritten into the physical area managed using the management information and defined as a reserved area on a preferential basis.

Abstract: In an editing apparatus; overwriting data used for insertion editing on base data, which is segmented into each picture including data having a predetermined unit of data amount X, and includes variable-length encoded real data, is variable-length encoded; each picture is sequentially obtained as a target picture, and regarding the target picture, if an amount of the overwriting data is equal to X, the overwriting data is handled as insertion data as it is, otherwise, insertion data is created by adding stuffing data to the overwriting data so that the amount of the overwriting data can be equal to X; a filler having the same amount as a filler of the base data is added to the insertion data having the same total amount as the real data; and the resultant insertion data is added onto the base data.