To create a pit, a high power pulse from the laser is focused into a small spot on the dye layer.
REVIEW TAGNOTATE CODE
In the EFM+ code table, the user data bytes are transformed into specific sequences of pits and lands, ranging from 3T up to 14T channel bits. Image visibility and recording process įor LabelTag the Eight-to-Fourteen Modulation (EFM+) channel code properties are modulated to create the visual label. For example: a 5 mm label at the inside requires 10% capacity, and at the outside of the disc about 20% of the disc capacity. In other words: the bigger the label, the more disc surface is occupied and thus the more data-space you sacrifice. The wider the label and the more it is located on the outside of the disc, the more space it takes. The amount of space it takes depends on the size (width) of the label and the location of the label on the disc. If you add a label on the data side of the disc, then this space is no longer available for data. If there is a label in this area, the risk of poor performance is big. Therefore, no label can be recorded at the inner diameter of the disc. The first section of the disc (26 mm) is used for all drives to do the start-up calibrations. In case the disc remains "appendable" more user data or more labels can be added. It is up to the user to finalize the disc after the label is added. The label is recorded adjacent to the last recorded user data. The disc status has to be “appendable” prior to the image recording. The label can be added or appended to the disc at any time if disc space is available. ISO9660 or UDF for data DVD-data disc, UDF bridge for DVD-video discs Overview of LabelTag system functions Overview of System Parameters The drive Servo part controls the record power, motor frequency, pixel frequency and channel bit frequency.
The drive Servo part finally records the pixel information on the correct location including the encoded line numbering. The drive Interface (IF) part takes care of the interpretation of the pixel information and location of the image on the disc. The drive interface, records the regular data, including lead in, session intros and closures, and finally lead out. The host sends print commands with the pixel information of the image to the drive. In the host application the user label input is transformed into a bit-map representation.
REVIEW TAGNOTATE PC
The PC host application controls the data location of the regular user data, including the structure of the file system. 1.4 Backwards compatibility and logical format.1.3 Image visibility and recording process.1.1 Location and time of image recording.
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