In case you want to enable ECW Decode support, it is mandatory you agree with the ECW Eula. Moreover if you want to support ECW Decode in a Server application you need to BUY a license from ERDAS. Note that with the latest GDAL 1.9.2 native libraries, the JP2ECW driver may crash on Linux using ImageIO-ext version 1.1.6. (The problem has been fixed on 1.1.7) See ImageIO-Ext related ticket: https://github.com/geosolutions-it/imageio-ext/issues/49 And the related GDAL ticket: http://trac.osgeo.org/gdal/ticket/5024 You may skip that driver by defining an Environment variable (GDAL_SKIP) GDAL_SKIP=JP2ECW