[EasyRider]

SingleFileSystem (SFS) provides an easy way to work with multiple files and folders stored as a part of a single file using advanced compression and encryption functionality. This solution encapsulates small but powerful file systems within a single file. The mechanism of SFS includes some advanced features of FAT and NTFS file systems and is specially optimized to achieve high performance.

It is still is not a "secret sauce" that needs to be guarded ...