The Rover is indeed a great song but it was on Physical Graffiti back in 1975 (possibly their Best Album, possibly Led Zeppelin III, can't make my mind up)
Still say In Through the Out Door should be deleted from their catalogue, or maybe just described as a John Paul Jones Solo Album, which...
Sadly (and I'm a massive fan of Led Zep & saw them at Knebworth in '79) but the whole of 'In Through The Out Door' is f*cking gash. Not one track would have got on any of the earlier albums. If pushed Carouselambra - awful and just shows what booze and heroin can do to a Band :(