Hi Sylvain, I have no problem with 92 Go ecw... 1.8 is sometimes a bit slower than 1.7.4, it' true.. Did you play with stretching options? Régis -- View this message in context: http://osgeo-org.1560.n6.nabble.com/big-ECW-problem-tp5032161p5032241.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com.