PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM

OBJECT                = TEXT
  PUBLICATION_DATE    = 2006-05-01
  NOTE                = "Description of contents of INDEX directory"
END_OBJECT            = TEXT
END

The INDEX directory contains an index table, INDEX.TAB, that lists
every data product in the archive. The index table is accompanied by a
PDS label, INDEX.LBL, that describes the format of the table.

The index table is an ASCII text file. Each line (record) in INDEX.TAB
contains information about a data product in the archive. The record
includes the path and file name of the PDS label that describes the
data product. 

Each line in INDEX.TAB consists of a set of fixed-length fields
delimited by commas. INDEX.LBL tells the start byte, number of bytes,
and data type of each field. Character fields are enclosed in double
quotation marks (").