you won't bust them, but its not scart leads that you need, its another cable (sorry still don't know the name) mmmm I was beginning to question myself there for a second, but I know that your video recorder will work on one AV on your TV and the DVD recorder will automatically go onto another AV, hence they won't actually record one from the other...
maybe someone else will come along and give you more info, as I said I'm only middling technical, haven't got the full knowledge, sorry