On Thu, 19 Nov 2009 11:03:06 -0800 (PST), matt koch
wrote:

ALL US raster charts are available free for download frm the NOAA
site: http://www.nauticalcharts.noaa.gov/mcd/Raster/index.htm

They are compatible with OpenCPN if not with Maptech as well. They
cover PR , not sure about the DR.

Thanks for the tip on Puerto Rico. I had not been aware they were out
there.

That leaves the Dominican Republic.