retagging compilation albums

At the moment my compilation albums are tagged with the current format.

%title% : title - track artist
%artist% : album artist

this means that all the artist tag fields for each song are actually the album artist e.g. ministry of sound. I've started retagging them manually but as you can imagine its quite tedious.

So, is there a way i can use the format value action to re tag the automatically. I.e. take everything after the dash " - " (track artist) and put that as the artist tag.

Thanks in advance, if this is possible itll save me a hell of a lot of time.

Try this:
Action type: Guess values
Source format: %title%
Guessing pattern: %title% - %artist%

thanks for the reply, after a bit of googling i managed to figure it out and got the same.

worked a treat.