Quote Originally Posted by Ayugene View Post
If there's so small changes between 20.12 & 20.11 (DEM), so why this new map so much smaller than Europe 20.11 - 483*229*696 bytes (20.11) & 317*841*408 bytes (20.12)?
We are speaking about Europe 20.11 317'841'408 bytes long (September 2011), the same size as the latest available (20.12) version. Difference of byte2byte comparison with 20.12 is in the post #49.
As for the April 2011 version of 20.11 (483'229'696 bytes long) - it has the same number of the maps/sub-files (288) but - as Neil already has noticed - less compressed, and sometimes slightly shifted coordinates of their boundaries. Gmaptool helps to compare the Detailes.