problem HTML encoded char in websource

hi all. i've been trying to write my own discogs websource and i came upon this problem.

i want %ARTIST% field to be read from to html links, not plain text i.e.
Advent, The

-%3DUHU%3D- and Advent%2C+The are the parts that i need
how do i convert them to -=UHU=- and Advent, The, without creating "bruteforce" script with tons of replacing.

i want to use this in order to avoid name variations. so that all tagged files would have (i.e.) Plastikman, but not Plasticman or Plastik Man.