LVW-5045 question

I saw on the lite-on site that you can copy a DVD to the HD and then copy anyhting fom the HD to a DVD.
So let’s say I have a home movie that I authored on my PC with menus, chapters, etc. Can copy it to the HD and back it up to another DVD?
Will it keep all the menus, chapters, etc?
I’m thinking of buying the LWV-5005 but if the LWV-5045 can back my DVD, then I might shell out some extra cash for that feature.
Let me know.