Seasons of Fear played okay for me, but I have had problems with bits of files downloading into the wrong place, and then being replaced with the correct pieces later in the download. This seems to result in all kinds of odd effects, including the one you describe. But, once it was done, everything turned out fine. I know very little about such matters, but I guess it has something to do with the way it was encoded or something.
Actually I noticed that too. IN bundle 2 Storm Warning played the Colin Baker audio when I did a preview, but now it's Storm Warning.
So everything should be alright once the whole thing is downloaded. Great, that's all I wanted to know. Thanks.