It’s impossible to have to VOBs to be named the same on a disc. Not sure how this disc was authored? How are you planning to re-author? The contents of the disc should be brought onto your desktop first – It should be as simple as deleting that Roxio Folder – its not letting you trash that folder?
Also, how are you adding copy protection? This can only be done at a licensed replication facility.
Best just to de-mux all assets then re-author the disc from scratch.