The following is a reply to a question I raised with Rosepoint Navigation about compatability of the NGA charts with Coastal Explorer. Looks like Rosepoint has already made the conversion for you. John Blackburn 44 DeFever "Yak Rack" Deale, MD -------- Original Message -------- Subject: RE: Map Formats Date: Thu, 3 Aug 2006 09:10:12 -0700 From: Gregg Baker <gregg@rosepointnav.com> To: 'John Blackburn' <jgblackburn@comcast.net> Hi John, The ‘Coastal Explorer Charts’ that ship with our retail product are derived from the DNC data. We are not directly compatible with the charts (Due to licensing restrictions on the DNC format) but we do have the 250 NGA charts available for the US included in our product in a converted format. As far as I am aware, no commercial product on the market is compatible with the DNC format, I believe you have to be a government agency or contractor to even download the charts. The files you can get from their website are simply patch files to the DNCs. --------------------------------------- Gregg Baker Product Support Engineer Rose Point Navigation Systems, LLC. P. (425) 605-0985 Gregg@rosepointnav.com From: John Blackburn [mailto:jgblackburn@comcast.net] Sent: Thursday, August 03, 2006 5:11 AM To: support@rosepointnav.com Subject: Map Formats Can Coastal Explorer use charts produced by the National Geospatial-Intelligence Agency that are available for public download? (the old Defense Mapping Agency) John Blackburn 44 DeFever "Yak Rack"