Trouble importing .mxf files into Premiere Pro CS6

Thank you so kindly for all of your responses. I used a number of recovery tools to explore the possibility of recovering the mfx files and as suggested converting to other formats. Unfortunately, the SanDisc appears to be corrupted and have resigned to writing the video footage off! I was able to recover  a few clips.

Will have to undertake some testing on the SanDisc

Thanks for your comments

To edit MXF in Premiere Pro, you will need to convert the MXF files to a format acceptable for Premiere. You can convert the MXF file to mpeg-2/wmv/mov for editing in Premiere Pro CS6.

Yes, MXF should play perfectly in PP CS6, but if you can't work this out at this point, you may wrap your MXF video to something intermediate. as a matter of face, Adobe Premiere Pro CS6 seems to work fine if you import your MXF clips directly from a camera or camcorder, but if have already copied MXF recordings your HDD or you downloaded them from somewhere else, the import error may occur.

So i suggest you convert the MXF footage to something mezzanine we would recommend DNxHD.mov (if you are on a PC) or Apple ProRes .mov (if on a mac). those two intermediate codecs are good mezzanine codecs that handle recompression well and standup well in other areas of post-production (color grading, graphics, compositing, etc,). You can see what I wrote about the solution. "Why Premiere Pro CS6 can't import MXF files?" i hope that it is helpful to you.

Are you using the Media Browser?

Import assets from file-based sources with Media Browser

http://helpx.adobe.com/content/help/en/premiere-pro/using/importing-assets-tapeless-formats.html#import_assets_from_file_based_sources_with_media_browser