according to one aspect of the present invention the sector addresses 16 and 18 are recorded using msr techniques having a significantly higher recording density than the density of the physically formed sector start identifier 10 consequently there is a reduction in the amount of physically formed sector address information as a result the overall storage capacity increases because more area is available to record user data in fact sector address information according to the present embodiment requires only 55 bytes which is half of what is required in conventional storage media in this manner the present embodiment facilitates a 3 increase in storage capacity over conventional storage mediums using 110 bytes of physically formed sector address information moreover the use of msr techniques to record the sector addresses 16 and 18 eliminates the need to provide the vfo 1 am vfo 2 and am pits of sector address information 90 fig1 provided in conventional devices accordingly storage capacity in a device according to the present invention is further increased as noted above sector start identifier 10 is formed as a physically indented pit the use of a physically formed pit is desirable in order to assure detection of the beginning of a sector with the improved sector formatting of the present invention the sector addresses id 1 16 and id 2 18 are recorded in the data field 13 using msr techniques as is well known in the art misreading of the sector address may be determined using the crc byte thus if necessary the misread sector address may be corrected using the ecc byte 20 consequently accurate.