Editor Log - Other Assets?

Could someone please tell me how I can find more details about the "Other Assets" reported in the Editor Log after a build?

Textures 72.1 mb 58.1% Meshes 0.0 kb 0.0% Animations 39.2 kb 0.0% Sounds 9.6 mb 7.7% Shaders 25.4 kb 0.0% Other Assets 35.4 mb 28.5% Levels 357.3 kb 0.3% Scripts 1.2 mb 1.0% Included DLLs 5.1 mb 4.1% File headers 196.5 kb 0.2% Complete size 124.1 mb 100.0%

28% of my project is used by "Other Assets", yet I have no idea what those are :(