What did you do to filter?
What file format are the audiobooks? (flac, mp4, mp3, wav?)
Have you checked the files for integrity? (No, it's not enough if they play, see links to tools here
What did you do to filter?
What file format are the audiobooks? (flac, mp4, mp3, wav?)
Have you checked the files for integrity? (No, it's not enough if they play, see links to tools here