If you want to convert from filename to tag-fields, then see there:
Converter
See also another practical usage for the converter when foldernames are involved too:
Extracing ID3 information (artist, title, etc) from file name
If you want to convert from one tag-field to multiple tag-fields, then you can use the action "Guess values".
Source Format:
%TITLE%
Formatstring:
%DISC%-%TRACK% %ALBUM% - %TITLE%
or maybe ...
%DISCNUMBER%-%TRACK% %ALBUM% - %TITLE%
If you do not need the ALBUM value, then you may use this formatstring:
%DISCNUMBER%-%TRACK% %DUMMY% - %TITLE%
Please read the Forum FAQ and read the threads from thousands of other users with the same theme as yours.
By the way ... what has the topic line "Remove Characters from middle of Tag" to do with the described problem?
DD.20110530.2110.CEST