A data storage device is disclosed comprising at least one head configured to access a magnetic tape. The head is used to write contiguously to the magnetic tape a first preamble, followed by a first sync mark, followed by symbols of a first data sector, followed by a second sync mark, followed by a second preamble, followed by a third sync mark, followed by symbols of a second data sector.

The technology disclosed herein pertains to a system and method for storing data on a storage media using both down-track super parity and cross-track super parity. Specifically, a method disclosed herein provides for generating down-track super parity values for data on the plurality of tracks and storing the down-track super parity values on a down-track super parity row of the storage block and generating cross-track super parity values for data on the plurality of rows and storing the cross-track super parity values on a cross-track upper parity track, wherein the cross-track super parity value for any given row is generated by inputting the data on the given row into an exclusive-OR (XOR) gate.

.[.A method is disclosed that includes: receiving, via a network digital video recorder, a request to record requested content; receiving, via a network digital video recorder at a first time, the requested content in a first format and the requested content in a second format; storing, via the network digital video recorder, the requested content in the first format; storing, via the network digital video recorder, the requested content in the second format; deleting, from network digital video recorder, the requested content in the second format after a predetermined time period; and transcoding, via an on demand transcoder, the requested content in the first format to the requested content in a third format after the predetermined time period..]. .Iadd.A method is disclosed, including: receiving request to record content; receiving the requested content in a plurality of versions; storing the requested content; from the plurality of versions, identify mezzanine content having a first format and resolution for retaining in storage; for a remaining plurality of versions: determine at least one criterion; retain one or more versions of the remaining plurality of versions in storage until the at least one criterion is met; receiving a request for playback of the requested content to a subscriber's device; determining whether the request may be fulfilled using any stored versions of the plurality of versions of the requested content; if the version having a format and resolution corresponding to the decoding capabilities of the subscriber's device is not stored, regenerate, from a stored version of the plurality of versions, the format and resolution that corresponds to the decoding capabilities of the subscriber's device..Iaddend.

According to one embodiment, a magnetic disk device includes a disk including two first servo sectors and at least a second servo sector, a head, and a controller, wherein the first servo sector includes burst data and a first data pattern written before the circumferential direction of the burst data, the second servo sector includes the burst data, the first data pattern, and a second data pattern written after the circumferential direction of the burst data, a first frequency of the first data pattern is different from a second frequency of the second data pattern, and a first length of the first data pattern is different from a second length of the second data pattern.

According to one embodiment, a magnetic disk device includes a disk that has a track including a first servo sector and a second servo sector that is different from the first servo sector, a head that writes data to the disk and reads data from the disk, and a controller that records first signal strength record data related to a signal strength at which first target servo data that is a target of the first servo sector is read, and standardizes first signal strength data related to a signal strength at which the first target servo data is read when the first target servo data is read.

A data recording device includes a recording medium, a control circuit configured to execute a read operation to read data from the recording medium or a write operation to write data on the recording medium, in response to a read or write request from an external device, and in accordance with one of a plurality of recording methods, a cache, a storage circuit configured to store a cache priority table in which a priority for storing read data or write data in the cache is set for each of the recording methods, and a cache control circuit configured to store the read data or the write data in the cache according to a priority set in the cache priority table for the read data and the recording method for the read data or for the write data and the recording method for the write data.

An image capture device for recording HDR (high dynamic range) image data obtained through image capture performs control so as to, when encoding HDR image data obtained by capturing an image with an image sensor, divide part of the HDR image data corresponding to a coding area to be encoded into a plurality of divided HDR image data, encode each of the plurality of divided HDR image data by using encoding means, and record the plurality of divided HDR image data that are encoded on a recording medium in a predetermined recording format.

An image capture device for recording HDR (high dynamic range) image data obtained through image capture performs control so as to, when encoding HDR image data obtained by capturing an image with an image sensor, divide part of the HDR image data corresponding to a coding area to be encoded into a plurality of divided HDR image data, encode each of the plurality of divided HDR image data by using encoding means, and record the plurality of divided HDR image data that are encoded on a recording medium in a predetermined recording format.

A method for generating calibration data useful for calibrating a plurality of tape cartridges includes the steps of selecting a subset of tape cartridges from the plurality of tape cartridges, the subset of tape cartridges having fewer tape cartridges than the plurality of tape cartridges; calibrating each of the subset of tape cartridges using a plurality of tape drives to generate global calibration data; selecting one of the plurality of tape cartridges that is not included within the subset of tape cartridges; and calibrating the one of the plurality of tape cartridges using the global calibration data generated via the calibrating of each of the subset of tape cartridges.

According to one embodiment, a magnetic disk device includes a disk including a first sector arranged at a first radial position deviated from a target position in a radial direction by a first offset amount larger than a first threshold value, a head that writes data to the disk and reads data from the disk, and a controller that reads the first sector by arranging the head at a second radial position deviated from the target position by a second offset amount different from the first offset amount.