Overdrive has software that’s compatible with Mac–but it assumes that all Mac users will use iTunes. And guess what…iTunes wants you to use a doPi player.
However, Overdrive also says it makes mp3 files. Why don’t you download an Overdrive book on your Mac and look at your files. Are they really mp3? Find a folder that’s a book and just drag it over to the Sansa in MSC mode. See if it plays.
The Overdrive site also says you can burn a CD of the audiobook. You could try doing that and then rip it (in iTunes, but go to Edit/Preferences/Advanced change the Import format to mp3) back to mp3, and drag-and-drop that onto the Sansa.
No guarantee that these will work. The problem is that Overdrive involves Digital Rights Management, which means your computer has to send secret stuff to the Sansa. If the computer (Mac) and the Sansa (basically Windows) don’t speak the same cryptographic language, you might just have to capitulate and get a doPi player instead. And welcome to Apple’s walled garden.
