mbaye wrote: > I have problem ito build overviews in vs2003 with gdal-1.4.0 > when i do this > > GDAL.gdal.AllRegister(); > GDAL.Dataset ds = GDAL.gdal.Open("jp2.jpg", GDAL.gdalconst.GA_ReadOnly); Try to replace GA_ReadOnly with GA_Update. Cheers -- Mateusz Loskot http://mateusz.loskot.net