DATA RECOVERY with "Mig Recovery and Viewer Utility"
.MIG files are in a MS proprietary format that no standard programs can view. Only a few people has taken up the chalenge. Mike Morawski for one has done a great job and built the Mig Recovery and Viewer Utility.
With the migviewer you can both view and extract the contents of .MIG files through an easy to use interface. Encrypted files are supported as well (IF you know the password!)
Download it from Mikes Technical blog here!
NOTE: Although Mike states that his tool only supports USMT3 and 4 .MIG files, I find it works well also with USMT 5 .MIGs