adding alum tag from the folder name

I have arround 15000 titles which havn`t any information about the title of the album.
what i have, is the album name in the folder structure like: H:\Compliations<b>Metal Ballads.
So the second one is the name of the album.

How can i adding automaticaly the name on it, without to do that manually?
With that i hope i can find the Album-Interpret!
Thank you in advanced for your support.


Use Convert>Filename-Tag
Convert string: %album%\%dummy%