BEN09880@xxxxxxx wrote: > > Sorry to burst your bubble... but FAT32 does NOT use SMALLER cluster sizes... > Actually, it uses LARGER cluster sizes... No, they are smaller... I am not going to explain it, instead, I'm going to quote the creators of FAT32: http://support.microsoft.com/default.aspx?scid=kb;EN-US;q154997 " Description of the FAT32 File System (Q154997) SUMMARY This article describes the FAT32 file system that is included with Windows 95 OEM Service Release 2 (OSR2), Windows 98, and Windows Millennium Edition (Me). MORE INFORMATION Windows 95 OSR2, Windows 98, and Windows Me include an updated version of the FAT file system. This updated version is called FAT32. The FAT32 file system allows for a default cluster size as small as 4 KB, and includes support for EIDE hard disk sizes larger than 2 gigabytes (GB). FAT32 Features FAT32 provides the following enhancements over previous implementations of the FAT file system: * FAT32 supports drives up to 2 terabytes in size. * NOTE : Microsoft Windows 2000 only supports FAT32 partitions up to a size of 32 GB. * FAT32 uses space more efficiently. FAT32 uses smaller clusters (that is, 4-KB clusters for drives up to 8 GB in size), resulting in 10 to 15 percent more efficient use of disk space relative to large FAT or FAT16 drives. FAT32 is more robust. FAT32 can relocate the root folder and use the backup copy of the file allocation table instead of the default copy. In addition, the boot record on FAT32 drives is expanded to include a backup copy of critical data structures. Therefore, FAT32 drives are less susceptible to a single point of failure than existing FAT16 drives. FAT32 is more flexible. The root folder on a FAT32 drive is an ordinary cluster chain, so it can be located anywhere on the drive. The previous limitations on the number of root folder entries no longer exist. In addition, file allocation table mirroring can be disabled, allowing a copy of the file allocation table other than the first one to be active. These features allow for dynamic resizing of FAT32 partitions. Note, however, that although the FAT32 design allows for this capability, it will not be implemented by Microsoft in the initial release. FAT32 Compatibility Considerations To maintain the greatest compatibility possible with existing programs, networks, and device drivers, FAT32 was implemented with as little change as possible to the existing Windows architecture, internal data structures, Application Programming Interfaces (APIs), and on-disk format. However, because 4 bytes are now required to store cluster values, many internal and on-disk data structures and published APIs have been revised or expanded. In some cases, existing APIs will not work on FAT32 drives. Most programs will be unaffected by these changes. Existing tools and drivers should continue to work on FAT32 drives. However, MS-DOS block device drivers (for example, Aspidisk.sys) and disk tools will need to be revised to support FAT32 drives. All of the Microsoft bundled disk tools (Format, Fdisk, Defrag, and MS-DOS- based and Windows-based ScanDisk) have been revised to work with FAT32. In addition, Microsoft is working with leading device driver and disk tool manufacturers to support them in revising their products to support FAT32. " -- Erwin Dokter mailto:edokter@xxxxxxx http://members.home.nl/edokter -- To unsubscribe, send a message to listar@xxxxxxxxxxxxxxxxx with "unsubscribe calmira_tips" in the body. OR visit http://freelists.dhs.org