需要转换
Download the torrent file for the regions you are interested in from the links at the top right of this post. Open the torrent file with your BitTorrent client, which will initiate the downloading of the scenery file.
Unzip the downloaded file to your Custom Scenery Folder. If you already have a folder called yOrtho4XP_Overlays, that's fine, just let the new files unzip to that folder as well.
Navigate to the \textures sub-folder. You will need to convert all the JPG files in this folder to DDS files. The best way to do this is to use Gastonreif's batch file which can be downloaded below. Just unzip it to the textures folder and click on the bat file. Some of the older packages have bat files included, which can be ignored.