GDALBuildOverviews() seems to works fine now, my bad. Thanks for the responses. -- View this message in context: http://osgeo-org.1560.x6.nabble.com/gdal-dev-Questions-about-MBTiles-write-support-GDAL-2-1-RC4-tp5263684p5264135.html Sent from the GDAL - Dev mailing list archive at Nabble.com.