Quote Originally Posted by johnvanvliet View Post
ecw is based on jpeg2000
you have to have that support first

gdal can work with it maybe
the OLD out of date version has a qgis plugin
but gdal2 and the current qgis might have a jpeg2000 problem

16 years ago jpeg 2000 never took off as a format
i have only seen ONE major data set use it
the Univ. of Arizona and the MRO HiRies data

erdas has a SDK
http://www.hexagongeospatial.com/pro...as-ecw-jp2-sdk

for gdal see:
https://trac.osgeo.org/gdal/wiki/ECW


free to "USE" for some things


the er viewer
http://download.intergraph.com/downl...er-2014-v14.01


from here
http://ecw-map-viewer.en.informer.com/

"GeoVisu" or "OziExplorer" might work
try a few from the list in the link above
Thank you very, very much!!