I did a 20 minute hack and slapped together an app that outputs a KML file for use in Google Earth. It shows the areas that are covered by BGL files, and it is much easier to spot any missing areas with this.To test this, load the attached file and unzip it and use "Load..." from the Google Earth application to load it into Google Earth. The yellow squares on the globe mark all covered areas in Tileproxy Beta 4.Scenery designers could use this kind of display to more accurately pinpoint BGL file names. If I put more work into this, I could also outline the larger folders which cover an area of 8x8 of smaller BGLs.Christian

That KML was VERY helpful in filling the coverage holes. I think I must have added about 100 extra BGLs...

I tried the polar regions but due to the angle probably, resolution is nil.