FIELD: optical data carriers.
SUBSTANCE: disk has track grooves, along which main information is recorded. Track groove is divided on multiple blocks. Each of multiple blocks includes multiple frames. Each of multiple frames contains oscillations of one of multiple given oscillation shapes, characterizing sub-information. Each of multiple blocks contains address information, represented by shape of oscillations of at least one of multiple frames.
EFFECT: lesser amount of service data, decreased possibility of increase in number of errors.
4 cl, 42 dwg
