Abstract: An information processing apparatus, an information processing method, and a program capable of improving convenience of a device in which a virtual machine is able to operate are provided. An information processing apparatus is provided that includes a processing unit having a function for controlling execution of processing regarding a virtual machine, in which a virtual machine program that operates the virtual machine is associated with condition information that includes information indicating a region of a recording medium and indicates a condition under which the virtual machine is operated, a code of the virtual machine program, and a first electronic signature generated on the basis of the condition information, and the processing unit controls the execution of the processing regarding the virtual machine on the basis of a confirmation result of the first electronic signature associated with the virtual machine program.

Abstract: An apparatus and method to detect the boundary between a recorded region and a recordable region. When data is recorded on fixed length packets, with each packet comprised of a plurality of blocks, the boundary is determined by a block in which a reading error has occured and that is located at a position distant from a track head by an integral multiple of the packet length. Alternatively, when the blocks are identifiable from among a plurality of block types, the boundary is determined by using the block type of the eroneous block.

Abstract: An information recording method based on a recording format in which when information is recorded on an information recording medium by a recording means, accompanying information concerning at least the information recording medium or recording information is repeatedly recorded a plurality of times together with the recording information comprises the steps of searching a recording failure position in an area in which the accompanying information is to be recorded when a recording of the accompanying information is failed, moving the recording means from a recording start position to the recording failure position, and recording the accompanying information from the recording failure position by the recording means based on the recording format.

Abstract: A control apparatus for use with a recordable recording medium, such as a write once compact disc (CD-WO), in accordance with a SCSI-2 interface previously defined for a pre-recorded recording medium, such as a normal CD, automatically sets and updates attribute information needed for recording the CD-WO. When the CD-WO is blank or partially written, track information pages, in addition to a disc information page, are used to manage recording medium attribute information. The disc and track information pages are associated with corresponding disc and track changeability information pages.

Abstract: When a previous recording of data on a write-once optical disc is incomplete, the previous recording is processed to enable it to be read, and to enable additional data to be recordable on the write-once optical disc following the incomplete previous recording. The previous recording, when incomplete, lacks at least an end portion that would be included in the previous recording when complete. The previous recording is tested to determine whether it is incomplete. When the previous recording is detected as being incomplete, the position of the end of the previous recording is determined, a pseudo signal is generated for recording on the write-once optical disc, and the pseudo signal is written on the write-once optical disc, starting at the previously-determined position of the end of the previous recording. Writing the pseudo signal appends to the previous recording an additional recording that includes a replacement for the end portion lacking from the incomplete previous recording.