here - OSTA - Optical Storage Technology Association

mechanism for the host software to retrieve from the drive the most recent power
calibration settings used by the drive to record data on the current disc, and to restore and
use such information at some future time.
The Power Calibration Table described herein would be used to store on the disc the
power calibration information thus obtained for future use by compatible
implementations. The table consists of a header followed by a list of records containing
power calibration settings which have been used by various drives and/or hosts, under
various conditions, to record data on this disc, as well as other relevant information which
may be used to determine which of the recorded calibration settings may be appropriate
for use in a future situation. While every effort has been made to anticipate and include
all necessary information to make effective use of the recorded power calibration
information possible, it is up to the individual implementation to determine if, when and
how such information will actually be used.
The Power Calibration Table may be recorded as a system stream of the File Set
Descriptor according to the rules of 3.3.53.3.5. The name of the stream shall be as
follows:
“*UDF Power Cal Table”
Implementations that do not support the Power Calibration Table shall not delete this
stream. Further, any implementation which supports and/or uses the Power Calibration
Table shall not delete or modify any records from such table which the implementation,
through its use thereof, did not clearly and specifically obsolete or update.
UDF 2.01
93
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