The Sleuth Kit is a C++ library and collection of open source file system forensics tools that allow you to, among other things, view allocated and deleted data from NTFS, FAT, FFS, EXT2, Ext3, HFS+, and ISO9660 images.
AVFS is a system, which enables all programs to look inside gzip, tar, zip, etc. files or view remote (ftp, http, dav, etc.) files, without recompiling the programs.
FFS File System Driver for Windows 2000/XP/2003, allows you to get a read access to FreeBSD, NetBSD and OpenBSD FFS(UFS) partitions.
*nix version of TrdFolder - free GUI based browser of ZX Spectrum images (TRD, SCL, TAP). features: - screen dump viewing - basic files viewing - delete/undelete files - 'move' images - create new image wizard etc
The Vinum Volume Manager is a device driver which implements virtual disk drives. It isolates disk hardware from the block device interface and maps data in ways which result in an increase in flexibility, performance and reliability.
CMage provides the ability to create an image of a filesystem on an IDE/SATA device and apply the image to a second hard drive of either IDE or SATA with a smaller, equal, or larger device size. CMage is run from a linux based liveCD on the terminal.
Robust tool for mounting an OpenBSD MFS partition onto /var, with the root fs mounted read-only. Main use: CompactFlash card based SBCs (Soekris, WARP,..). Project page is at: http://www.stsx.org/openbsd/mfsmount/
Not even in alpha stage, anyone doing java and interested to join please do, loads of stuff to do.