I'm trying to export this WMS: http://www.arcgis.com/home/item.html?id=226d23f076da478bba4589e7eae95952
It explicitly states it's for export. However when I try to create a Tile Package, the Analyze button tells me the "Layer type is not supported". I suspected some other files or the document setup, but the error is the same in a blank mxd as well.
I'd actually prefer just plain raster tiles, but that doesn't seem to be possible?