These files are not meant to be opened, edited etc. by the user.
|.ctg - Canon Catalog File (Audio Files)
CTG is the file format used to describe index files that are found on memory cards used in Canon digital cameras, these files are a catalogue of the folders... [More Information]
|.vfs - Virtual File System Index (Misc Files)
Virtual File Systems which use the file extension .vfs can be used to so that client applications can can access different concrete file systems. An example... [More Information]
|.njb - Photo Index File (Misc Files)
When you use a Nikon Digital Camera you will find that there is a files saved to your media card with the extension NJB. This file is used to index the... [More Information]