You’re in CS6? Trying to flip to ProRes? You don’t need content browser as CS6 reads and plays .mxf. If you’d rather have a .mov, do the following.
1) Import complete file structure to Media Encoder and export desired settings.
2) Import complete file structure into a Premiere project with sequence set for XDCAM 422 1080p30 and export to desired settings.
Hope I was understanding correctly.