Importing AMT clip in MC 8.8.4

Hi to all

I can't import an AMT clip in MC8.8.4.  When I link the aaf, metadata are ok and I see all in the bin, but when I double click in order to display  in source monitor, result is in "media offline".  In previous versions of mc I copied the *.mxf files in the MediaFiles directory.  Now this directory isn't in the root of main volume (c: in my case).  Where I should copy these files ?

regards