Indexator.NET is an application written in C# that is able to index directories and store information about the files found in a MySQL database, associating it with labels (so it can be used as a CD cataloguer). The information can be consulted in several ways: a console client, a graphical client (GTK#), asp.net Web, an asp.net service, or using remoting. It has two main objectives: to be used as a CD-ROM cataloguer, and to be used as a way to explain the possibities of Mono (and .NET) in educational environments.
Virtualfs provides a set of plugins and let you define new ones. Each plugin may intercept and enhance file system operation. Various plugins are already done, including remote device access for Xterminals (to access the floppy, CD, and sound cards with standard applications), auto-mounter (browse and automount your SMB shares), access control lists, etc.
EVP dirdiff is a tool that recursively compares two directory trees using MD5 hash function. The depth of the directory tree can be limited, and the two directories can optionally be synchronized. MD5 file hashes are printed. File names can be enclosed in the characters of your choice.
mmounter tries to mimic the behaviour of MacOS with regards to automatic monitoring and mounting of the volumes in your system (CDs, ZIP disks, floppies, HDs) using their volume name as the mount point. It will optionally eject devices and let users mount/umount them. Currently mmounter supports ext2, ext3, iso9660 (CD), HFS, and VFAT. This tool is user-space only (doesn't require any kernel patching) and should be fairly portable.