I just get the impression that they're not actually using the physical bricks and mortar they have to their full extent. Take for example Games Workshop, they have events in-store and will do free delivery to their stores (free footfall).
So why don't HMV have music events in-store (small events), create that free footfall that can translate into something more community based. It's something they could offer that Amazon etc can't offer without bricks and mortar. Same for Game, events in-store.
They're being one trick ponies at this stage, even the larger retailers like Sainsbury's and Tesco have diversified over the years offering more than "just food" (Magazines, Books, Media, Chemists, Argos, Phone shops, Cafe, Clothing, etc etc). If bricks and mortar retailers want to compete then they need both a strong in-store offering as well as a well managed and designed online offering. HMV and Game? They don't do this from what I've seen, they'll go the way of the dodo if they don't diversify to their own strengths for their markets.