Known filenames:
BiomesOPlenty-1.7.2-2.0.2.931-universal.jar
BiomesOPlenty-2.0.2.931.jar
BiomesOPlenty-1.7.2-2.0.2.931-universal (1).jar
BiomesOPlenty_2.0.2.931-universal_MC172.jar
BiomesOPlenty-1.7.2-2.0.2.931-universal 11.01.37 AM.jar
BiomesOPlenty.jar
Biomes_O_Plenty-1.7.2-2.0.2.931.jar