"Great stories ruined by obnoxious Audible format"
First-time Audible user: I bought this collection to listen to in the car (via burned cds). I was very excited about the possibility of listening to 30-min-long stories, one at a time. However, Audible's bizarre formatting of the chapters/ tracks, presumably an attempt to complicate pirating, means that it's impossible to navigate sensibly through the collection. The Audible computer software allows you to "skip" to the next chapter of a story, or skip several times to go to the next story, but this functionality disappears on any other cd player. I ended up having to listen to the last few minutes of the prior mystery - ruining any surprises it might have contained - in order to hear a particular mystery from its beginning.
If you are planning to start exactly at the first story and then listen to each and every one perfectly in order, it would only be a minor annoyance that trying to navigate will drop you into the middle of a sentence. However it is impossible to skip a story, or to select one that sounds particularly interesting, without either missing its beginning or spoiling whichever mystery came before. Very disappointed. A collection of short mysteries is a particularly poor choice for listening to away from your Audible-software player.
(Also, if I want to carry them around in the car there's a good chance they'll get damaged or scratched - which shouldn't be a big deal, except that I'll have to get "special permission" to burn any replacements. It's like I don't even own it.)