DATA RECORDER AND COMMODITY PROCESSING APPARATUS HAVING SAME

The present invention provides a data recording device, wherein FAT and directory data, which are file managing information, are protected, whereby, during a restart, the FAT and directory data can be restored to a state that was in effect directly before a file update or another file operation even when a power source is interrupted during the file operation; and a goods-processing apparatus comprising same. The data recording device (20) comprises CompactFlash (2) and SRAM (4), wherein the files are managed by a FAT file system. The CompactFlash (2) records file data of a file, a FAT, and directory data. The SRAM (4) is provided with a backup region. The FAT and directory data are backed up to the backup region before the FAT and directory data are updated.