MacBook Won't Read M-Audio e49

Hey,
Just trying to plug an M-Audio Keystation e49 into my Macbook Pro (retina) and it's not reading it at all. I've tried going into Audi MIDI Setup and still nothing. It's not the keyboard or the cable as I just tried them on my iMac.
Any suggestions?
Thanks

Jay Bullock wrote:
Does your machine read other audio CDs? Did you try cleaning the CD? cleaning your drive?
YES< IT DOES. This is the first time something like this happens.
P.S. The CD is "Upon My Wicked Son" by Andy Prieboy (1990)

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