To determine the correct drive letter, assume the system boots to DOS without a CD-ROM driver, and that all drives have the file Allocation Table (FAT) file system.

A data processing apparatus writes the data stream of contents into a recording medium in which data storage positions are specified based on the file allocation table (FAT).

The computer table suggested FAT damage, the use of a second table to rewrite the first File Allocation table, often successfully restore your data on the floppy disk.