> I think that is actually the important question. Or at least, that and "In
> the UK is it 'Harry Potter and the half-blood prince' or 'Harry Potter and
> the Half-Blood Prince'?"

Artistic titles are usually title case, see:
http://www.amazon.co.uk/Harry-Potter-Half-blood-Prince-Childrens/dp/0747581088

> My eyes are drawn straight away to the words "playback" and "radio": these
> look out of place here (sloppy, even) without capitalisation.

That's exactly how they look to me.

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gl