Audiobook Creator/Editor (mp3->m4b, m4b+m4b, m4b retag)

[Flest 9]

Audiobook Creator/Editor - a small tool I write.
Hey! I threw a simple program for creating and editing audiobooks, since I couldn't find anything decent online — except for one paid option.
I'm sure it still has plenty of bugs, but it seems to work.
Features:

Encodes audio files (MP3, AAC, OGG, FLAC, etc.) to M4B format
Merges multiple M4B files into a single file
Rebuilds M4B files with proper tags
Joins multi-part chapters (e.g. "Prologue 01", "Prologue 02", etc.)

Requirements:
For encoding MP3 and similar formats, the source files need to have their tags already filled in. I personally use the free Mp3tag app for this. The most important tag is Title - this is what gets used as the chapter name. All other tags can be filled in directly within the program.

A note on performance:
The program runs slowly, as it's essentially a wrapper around several command-line utilities - and those utilities are inherently slow when working with the M4B container. Nothing I can do about that, I'm afraid.
Bonus:
Since Emby apparently can't read the Sorting Album tag for some reason (hi, Luke ), the program also generates an NFO file with all the filled-in tags pre-written, including <sorttitle>.

AudioBook Master v3.exe

Edited 1 hour ago by Flest