TUTORIAL FOR ANYONE WHO CANNOT CONVERT MAP WITHOUT ERROR! BACKUP YOUR MAP FIRST - Please! 1. open command prompt (start>run>cmd) 2. locate your server map file where the region files are saved in your cmd promt for example.. cd\ cd serverfoldername cd mapnamefolder cd regions 3. now type dir /s /p *.mc* | sort | more now press any key and carefully look for the last file to be converted from mcr to mca and look for where the MCA files stop showing up. Make a mental note of the filename AFTER the last mca file showing up and rename it or delete it for example you will see something like this:- r.245.444.mcr r.245.444.mca r245.448.mcr r245.448.mca r246-449.mcr <-------- this is the culprit of your problem, RENAME or DELETE r247-442.mcr r247.449.mcr Please understand that deleting the culprit file WILL fix your map convertion but it will be re-generated therefore you could possibly lose a few chunks. If the first convertion does not work, follow the step again until fully converted. then go access the damage. Let me know how you get on folks!