Hi all, my outlook account was locked, don't know yet why. I am writing this from an alternative account while waiting for Microsoft to fix that issue... I've now committed a first working version in the mdr2 branch: https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4841 https://www.mkgmap.org.uk/websvn/revision.php?repname=mkgmap&rev=4882 Don't expect anything drastic. The size of the MDR15 section is typically reduced by 33%, The rest of the index sections is not changed, a small MDR16 section is added. Gerd