is a translator library for raster geospatial data formats that is released under an X/MIT style Open Source license by the Open Source Geospatial Foundation. As a library, it presents a single abstract data model to the calling application for all supported formats. It also comes with a variety of useful commandline utilities for data translation and processing. The NEWS page describes the March 2008 GDAL/OGR 1.5.1 release.
The related OGR library (which lives within the GDAL source tree) provides a similar capability for simple features vector data.
Master: http://www.gdal.org
Download: ftp at remotesensing.org, http at download.osgeo.org
The gdal-dev@lists.osgeo.org mailing list can be used for discussion of development and user issues relatedt o GDAL and related technologies. Subscriptions can be done, and archives reviewed on the web. The mailing list is also available in read-only format by NNTP at news://news.gmane.org/gmane.comp.gis.gdal.devel and by HTTP at http://news.gmane.org/gmane.comp.gis.gdal.devel.
Some GDAL/OGR users and developers can also often be found in the gdal IRC channel on irc.freenode.net.
1.5.1.