PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2012-03-28 NOTE = "EXTRINFO.TXT describes the contents of the EXTRAS directory." END_OBJECT = TEXT END The EXTRAS directory contains files which facilitate the use of the data on this DVD-R volume, but which are not actually required for the use or understanding of those data. This directory contains the following sub-directories: SOFTWARE - contains source and executable code which should be of use to the IHW Archive user. The SOFTWARE directory is divided into subdirectories according to specific function or program, except for a general category of utilities. Source code (as ASCII fixed length text), binaries, or both may be included.