[irishcrazy2005]

If you do a quick search for "DVD copying" or something of the like you will find several threads related to this. I am not familiar with some of the iso stuff you are trying to do, 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). This would obviously cause the md5 not to match. I also happen to know that Roxio modifies only .ifo and .bup files, but leaves the VOB's alone. The answer seems to be to select the UDF/ISO option in Nero and apparently this will create a DVD that is not forced to conform to their specific DVD standards, but will still play in most standalones. I can not confirm this, because as you can see in my recent post in this forum, I have just started using Nero and am coastering discs all over the place.

-Phil