[tubemonkey]

Originally Posted by skinmaan

The reason for the different version is that the freebie, while the same book, has a different Amazon identifier (B003TFYOL4 vs. B002V1CJ8W). The reason for the difference is that the freebie is a throwback to the good old days when Audible used to set up short-time giveaways of popular mainstream books for members. This particular one is from the "Summer of Books" giveaway, likely from 2010. You'll spot the difference if you listen to the first few minutes of each version.

Thanks - that explains it.