Same deal here. I just bought a very expensive laptop. I like audiobooks. Without a play all function, my downloaded files are useless. I imagine there is some way to string them together, but I'm not that tech savvy, and it isn't the issue.
Matthew:
I discovered a work around. What I did was turn on autoplay in Blue Tooth and Devices (not sure if this is necessary, however), then I selected all the songs in the Explorer folder and right clicked them with the mouse. A popup prompting open appears. Click open and they all play in order.