Seems CAPN is mainly using all the normal,free NOAA charts
which of course is totally compatible with OCPN: Locked charts
from Softchart and Maptech
can only be used as re-calibrated screenshots,but that is illegal of course.
Charts & Navigation Data Included
Entire US Included
CAPN US DVD
SET includes all available Official raster and vector charts, aerial photos, and 3D bathy charts covering the US, including commercial
inland waterways. Yes, they're all included in a set of 18 DVDs! All the charts you need without having to spend additional money
for additional chart regions or chart types!
The CAPN integrates both Official NOAA and Corps of Engineers S57-ENC (Electronic Navigational Charts) with NGA military DNC (Digital Nautical Charts) to provide you the best US coverage and detail. Smart Chart Logic makes it easy to select the best chart for every situation.
Raster Charts and Photos
The CAPN provides the best Official NOAA RNC (Raster Nautical Charts) coverage available for the US. Fully integrates SoftChart and Maptech/BSB. High resolution aerial photos provide additional detail and situational awareness.