[fatoldpig]

Originally Posted by irishcrazy2005

.. but what I do know is that if you select a "DVD Video" project with Nero, it is known to modify some .ifo and .bup files (maybe the .vob's too, but I don't know about that). ....-Phil

In DVD Video mode, Nero does NOT change anything and md5 will match the original if you drag and drop VIDEO_TS folder (NOT the files inside it) on to VIDEO_TS folder in nero project. But if you select the files inside the video_ts folder and drop in nero project, then it'll change .ifo/.bup files. I have Nero 6 and I reconfirmed it last night. I have many DVD video's created using nero, using above method and they all match original md5s (including ifo/bup files).