Binder: Create Audiobooks

* Combine multiple audiofiles (mp3, mp4) into an audiobook that you can play with most audiobook players * Reorder the audio files, preview the audio * The files appear as chapters in the final output file, compatible with most other audiobook players * Set metadata if they are not already in the files provided, or edit them * Look up metadata online * Clean up chapter names. * Rename chapters * Set extended metadata, series, no. in the series, year, description * Set cover art.