Supported file formats: 

  • Free plan: mp3, m4a
  • Unlimited Audio Plan: mp3, m4a, ogg, zip, pdf, ppt, docx, xml
  • Unlimited Plus and above plans: mp3, m4a, ogg, zip, pdf, ppt, docx, xml, mp4, m4v, mpg


Supported image formats: 

.jpg, .gif, and .png.

 

The recommended stereo bit rate and sample rate for audio files:

  • Stereo Bit Rate:  128 kbps
  • Sample Rate:  44.1 kHz 


The maximum allowed single file size3GB.
The maximum allowed single image file size2 MB.

 

Recommended

In order to be better compatible with iTunes, iPad/tablets, and mobile, we highly recommend you use mp3 or H.264 based mp4 and m4v.