PDS_VERSION_ID = PDS3                                                         
                                                                              
RECORD_TYPE    = "STREAM"                                                     
                                                                              
OBJECT     = TEXT                                                             
  NOTE             = "Index directory explanation"                            
  PUBLICATION_DATE = 2006-08-01                                               
END_OBJECT = TEXT                                                             
END                                                                           
                                                                              
This directory contains the required index for the volume, in                 
"index.tab" and any other additional indices created to support               
the data.                                                                     
                                                                              
In addition, it contains the following two files:                             
                                                                              
  checksum.tab   Table of MD5 checksums for all files on this volume apart    
                 from itself and its label                                    
                                                                              
  checksum.lbl   PDS label for the 'checksum.tab' file