I have what appear to be dicom files.  The root directory of the CD ROM contains  a file called dicomdir.  The files are in a directory and named with non-consecutive 8-digit numbers.  The directory is named with an 8 digit number as well. 
After converting the files to mgz format, running recon-all, and viewing the image, I see that the slices are not oriented correctly.  In the coronal view, the image looks like a thin, incoherent stripe.  In the sagital view there are several sagital slices and several coronal slices and most of the slices have no image on them.  What is going on here?