MCH - you've never heard an audio book?
Boy, you've been missing out. Big Finnish are an audiocompany who make Doctor Who audio books. Now, Tom has done 10 Dr Who audiobooks so far for the BBC, and they are a mix of spoken narration and audio drama, whereas the Big Finish books are complete dramas with no spoken word narration (so like listening to a soundtrack of a TV programme.) What's great about them is that there are no budget restrictions to what you can depict in terms of special effects or sets, and it doesn't matter how different an old Doctor Who actor looks now as their voices still sound the same. Tom's now agreed to do 18 (yes, 18!) productions for Big Finish and apparently they will also feature Louise Jameson as Leela and Mary Tamm as Romana. The BBC Hornet's Nest/ Demon Quest stories were great but a little atypical of Tom's TV stories, whereas I think the Big Finish ones will be the real deal. Can't wait!