hi etienne, it seems that compression is also possible via GUI http://i59.tinypic.com/2ueilg9.png -- View this message in context: http://osgeo-org.1560.x6.nabble.com/Selecting-rasters-with-vector-layer-tp5107230p5108192.html Sent from the Quantum GIS - User mailing list archive at Nabble.com.