What audio formats does Nagmix accept for distribution?

Nagmix accepts WAV audio files (16-bit or 24-bit, 44.1 kHz) for the best quality distribution. We recommend 24-bit WAV for master quality. MP3 files (320kbps minimum) are also accepted. Cover artwork must be a minimum of 3000x3000 pixels in JPEG or PNG format with no logos or website URLs.