Shoot. I forget the exact limits. It's different between sound effects and music I believe. Going from the ones found in the assets, you can at least do: Music: MP3, Stereo, 44100Hz, 32 bit Sound: WAV, Mono, 22050Hz, 32 bit MP3, Stereo, 44100Hz, 32 bit I'm sure there's some leeway between some settings, like the sample rate. I think WAV can actually go down to 44100 as well, not sure.