Hello Andrey, Thanks so much for taken the time to explain this well to me. Best regards, Paul. ----- Original Message ----- From: "Andrey Kiselev" <dron at a...> To: <gdal-dev at yahoogroups.com> Sent: Thursday, August 01, 2002 9:00 PM Subject: Re: [gdal-dev] Re: Calibration in GDAL