eaudiobook snsa m230 help needed

MTP is the same as Auto Detect. MSC is different.
I would suggest studying the How to Videos.
They show the various methods for transferring files
and playlists.

I would suggest you reformat your player and start
clean. Back up your files as it will erase all.

How to Videos Click Here

More Videos including Windows Media Player 10 and 11
instruction   Click Here