Important Legal & Ethical Note:
CM93 v2 charts are proprietary, copyrighted material originally produced by C-Map (now Navico/JEOTECH) . They are no longer officially sold or supported for consumer use. The version widely available online is an unauthorized, decade-old dataset (circa 2010–2016).
This report is for legacy/educational purposes only. For legal navigation, you must use official, up-to-date charts from your hydrographic office or authorized vendors (e.g., C-MAP, NV Charts, Navionics, Official ENCs).
Acquiring the Files: The dataset typically comes as a folder named CM93_2012 or similar, containing many subfolders (e.g., 00300000, 00400000) and an CM93Dictionary.xml file. A legitimate source might be an old CD-ROM or a second-hand chart plotter's SD card. cm93 v2 charts download install
Better modern alternatives (all work in OpenCPN): Important Legal & Ethical Note: CM93 v2 charts
This 2,500+ word guide will walk you through everything—from understanding the file structure to a step-by-step installation guide and troubleshooting common errors. Ensure the folder contains the necessary database files
CM93 or containing subfolders numbered by region).