Hi I'm having issues with my MXF files in Premiere Pro cs5. When I bring my mxf files into my project its only playing back audio, i can't even see video. It's like its only reading it as audio. 

If I play the mxf file outside of Preimere in VLC I am able to see the video and audio. 

Is there an extension I need or something? 

Premiere Pro cs5
Mac OSX Yosemite 10.10.2 
Shot on Cannon c300

Thanks