I was ill last week and aching too much to hold a book - I chanced on a radio adaptation of a much-loved book and thought I'd give it a try, but I had to stop listening because almost all the voices were completely wrong (i.e. not a match for what I'd always had in my head).
It occurred to me that I don't really mind, on screen adaptations, if a character doesn't look as I'd pictured them (though it can be jarring when a famous actor is chosen who bears no resemblance to the book description). If they sound wrong - particularly in audio only adaptations - I simply can't listen.
Interested to know what others think.