[cyberhusky]

Due to the other thread concerning OpenCPN and CM93 charts and compatibility with MacENC I searched the net and did find this link:

http://www.jeppesenmarine.com/cmworld/cmworldinfo.asp

There are 2 quotes on this site that let me think that CM93 could become available on Mac computers:

CM-93/3 is compliant with S-57 Edition 3.0

CM-93/3 has been designed by C-MAP to be fully compliant with Edition 3.0 of S-57, the international standard issued by the IHO that defines the format and contents of electronic charts for use in ECDIS systems.

CM-93/3 supports all the new object classes and attributes defined by S-57 Ed. 3.0, as well as the S-57 data model and updating mechanism. This means that official electronic charts, issued in S-57/3 format by a Hydrographic Office, may be converted to CM-93/3 maintaining their original structure, properties and contents. The conversion procedure is currently under evaluation by the relevant Authorities so that it can be officially certified.

So MacENC is S57 compliant too.

CM-93/3 is compatible with all hardware platforms and operating systems

CM-93/3 makes no use of floating point numbers, to increase its compatibility with various hardware platforms and operating systems. The compression and encryption algorithms implemented in the format have been extensively tested on a number of different processors and systems.

What I really like about CM93 charts is the 3D possibility! (MaxSea/Time Zero)