http://rapidshare.com/files/11616301/BackupHDDVD.rar
2 'requested' features added:
1) Will report the calculated Disc Hash
2) If Hash not found in key file, will add it after prompting for the name of the movie.
Given I don't have neither HDDVD Drive nor any HD Movies, I'll need bug reports from somebody on if these work or not
Also, this was compiled against Java 5.0 so if it gives errors, try:
http://rapidshare.com/files/11615854/BackupHDDVD.rar which was compiled as 1.4 compat.