M.2.2 Logical Format

The Logical Format for the 130 mm 4.1GB disk shall be the PC File System (see Annex A).

The boot sector defined in Annex A shall have the following values.

Table M.2-1

Boot Parameter Values for 130mm 4.1GB Magneto-Optical Disk

Byte(s) Value Description
11 – 12 0200H 512 bytes/sector
13 40H or 80H Sectors / cluster, either 64 or 128. See Note.
21 F8H Flag for disk type F8H = Hard Disk.
24 - 25 003EH (Nominal) Nominally 62 sectors/track, but may vary, and any value should not affect interoperability.
26 - 27 0001H (Nominal) Nominally 1 head, but may vary, and any value should not affect interoperability.

Note: Lower values would not utilize all the disk sectors on a side.