CD audio book doesn't automatically show in audio book folder

You're welcome. 🙂

tt2

To answer your second question first:

nephtwim wrote:

2. Why does iPod not recognize audio books CDs as audio books?

It's not so much the iPod as iTunes and the answer is because a CD is an "audio CD". The original design of the compact disc (back in the 1980's) was that it contained audio, and an audiobook is audio. There is no method within the CD format to add information that would distinguish between music and speech, it's all audio. Therefore, there is nothing on the CD that tells iTunes whether the content is music or speech.

There isn't even the track name information on the CD, which is why iTunes goes to Gracenote, but Gracenote also cannot distinguish between the two types of content, so it would rely upon whoever is adding track name information to Gracenote to correctly add the fact that it is an audiobook. Experience tells me that isn't likely to work very well and even if it did, it's too late now to change the system.

1. Why can't I change the media type to audio book for multiple tracks at the same time?

You should be able to do so. Which version of iTunes are you using?

I've just selected a few songs in my iTunes Library and changed them to audiobook:

and here is the album in Audiobooks:

I made this change in the Songs View, by highlighting all the songs on that album and selecting Get Info, but it works the same way in the Albums View.