FAUtil - This is the "check it out" app that you run anytime you insert a new or strange CF Card into your MatchBookDrive. If it doesn't pass muster in this app for whatever reason, don't even try using the other apps. I've tried five CF Cards ranging in size from 4 megs to 64 megs without incident. Note in the screen shot that the CFCardInfo application has recognized my 16 meg card as a SanDisk SDCFB-16.  It also shows details like how many "heads" and "cylinders" this card has. Remember, that a CF Card looks like a hard drive, and doesn't really have physical heads and cylinders - it has "logical" heads and cylinders.
FAUtil also supports both Quick and Full Formatting of CF Cards. If you format your CF Card with this App, then insert your card later into a laptop or CF Card adapter, it looks just like a Standard FAT (File Allocation Table) File System. Basically, it's DOS Compatible. This is useful, because you can have .PDB and .PRC file along side your other .DOC and .WHATEVER files. You don't have to dedicate a CF Card to just your Visor files.