This feature allows you to copy the folder structure (folders and their subfolders) of your "base" folder into another location. This is ideal for if you want to convert your entire music library, including it's folder structure, to a new location.

Choose base folder to mirror

Click this checkbox if you want the folders that contain the files you have added to Switch to be copied with the newly converted files.

When you hit the convert button a window will open asking you to choose your base folder to copy. This folder needs to contain (at some point) all the files you have added to switch for conversion. For example, if you have added all the files in "C:\MyMusic\artists\albums" your choices for base folder would be "MyMusic", "Artists" and "Albums."

The new base folder and all its subfolders will be copied to the output location you have specified in the output field in Switch. So if your output folder has been set to "C:\Documents\Converted Music" and you specify your base folder as "C:\MyMusic" the converted files will be copied to "C:\Documents\Converted Music\MyMusic.." with the folders that contain your music being recreated there.