Cover extraction

Dear all,

thanks to mp3tag ALL my mp3 are perfectly tagged - and mp3tag is perfect to do so.

Now I want to extract all covers of my mp3 files and name them with the title (or filename)
Example:

cover of

Brahms_op068_Sinfonie_N°1_c_2_Andante_sostenuto.mp3

should be extracted and named to

Brahms_op068_Sinfonie_N°1_c_2_Andante_sostenuto.jpg

Why ?
I want to browse visually through my covers as through a disk-collection ...

Of course I do not need 4 covers for a 4 movement symphony, but I can help myself later...

With my ROCK collection it was easy:
In each directory (=Album) was a file named folder.jpg and this had been renamed by batch to
Album.jpg. Done.

Excellent, as I wanted. But I do not have these extracted covers in CLASSIC... ;-(

I am talking about 70.000 Classic tracks, so no hand-extracting, please.

Hope this is possible - I am almost sure it is !

Thanks in advance, Bernd.

PS: Here is my collection I am talking about:

http://www.vorticity.de/mp3/alphaall.htm

There is an action for that:
http://help.mp3tag.de/options_format.html#exportcover

as format string for the filename enter:
%_filename%.jpg
this exports the cover from each file and creates a jpg files with the filename of the mp3 file but a different extentsion.