exFAT for Extended File Allocation Table is a Microsoft technology whose name is probably foreign to many Windows users. This file system has indeed been one of the inputs of the Service Pack 1 for Windows Vista, and logically it is present by default in the operating system Windows 7. An update for Windows XP SP2 and SP3 is also available.
exFAT successor is designated by Microsoft's older FAT (and FAT32). The former of Extended refers to a support that is extended from 32 GB to address the maximum data from FAT to 256 TB for exFAT. For example, Microsoft says exFAT can handle more than 4 000 image files in raw format (RAW), 100 HD movies or 60 hours of HD recording in a single directory.
Among other new features exFAT: support for files larger than 4 GB (FAT32 limitation), the management of the timestamp UTC (Coordinated Universal Time), metadata for storing settings OEM checklists access (Access Control List).
While NTFS is intended for hard drives, exFAT target flash memory devices. Last week, Microsoft has announced the launch of its licensing program for exFAT who had nevertheless already started. One way also recalled its commitment to respect the intellectual property after a mutual agreement reached with TomTom in a brawl around FAT which gave a cold sweat at the Linux world.
Sony, Canon and Sanyo have already subscribed to the Microsoft program. The price is 300 000 dollars for certain categories of equipment (cameras, camcorders ...) also with a price based on volume for mobile telephony in particular.
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