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					Originally Posted by  HarryT
					 
				 
				To be correct about it, PDB is a format, but it's a "container", like a ZIP file is. Just like a ZIP file it can contain absolutely anything. 
			
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 More accurately it is the file representation of the internal database format used in Palm memory. The Palm, initially, did not have a file system and still doesn't internally in its RAM. All databases are referenced directly. When backed-up on a PC it is stored in a file and, to aid in the loading, the file is given an extension. There is no processing as there would be in a zip file to access the data. You are seeing a straight dump of a portion of Palm memory.
Dale