[Ceefaxer]

So i have a lot of m4b files which are all reconised and play under artists or albums, but I cannot get them into my nodes filtered by genre etc. These have all been tagged with mp3tag or equivalent. All the album information for genre is not present when I view album information.

So I created an .nfo file called album.nfo and placed it in the album folder missing the genre.

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<album>
    <genre>Audiobooks</genre>
    <genre>Fantasy</genre>
    <genre>Series</genre>
</album>

All my audio uses local information, but the .nfo is only recognised when I select fetch additional information during updates.
The information is seen as it is updated and shown in the album information. However the node is not populated. 

How can i tag an m4b file to be recognised?

[Karellen]

IIRC, the Type or Release Type tag in the audiobook file needs the value set to Audiobook

https://musicbrainz.org/doc/Release_Group/Type

Also, fyi... https://kodi.wiki/view/Audiobooks

[Ceefaxer]

so simply....first time im using .nfo or anything like this

<?xml version="1.0" encoding="UTF-8" standalone="yes" ?>
<album>
    <genre>Series</genre>
    <type>Audiobook</type>
</album>

[Karellen]

Explain again what you are trying to do. What outcome do you want? Are you trying to separate your audiobooks from your regular music in the library?

[Ceefaxer]

No, I have all my audiobooks separated from music. But I have nodes that are separated by genre. So genres include Audiobook, Series, stand-up, podcasts as well as broader genre like sci-fi, fantasy etc.

I want to click my series node and see everything i have tagged as 'series', similarly i want to click audiobook and see everything i have tagged with audiobook.

All m4b files are not being put into the relevant genre nodes even though I can see them being tagged by the nfo you suggested. If I look at the album information box I can see the correct tags. MP3's are separated by genre and work fine. Nodes looking at a particular path are also fine.

As an example:
I have tagged the books Silmarillion (mp3), the hobbit(Mp3), the lord of the rings (m4b) as Audiobook / Fantasy / Series. I noticed The lord of the rings was not in the nodes  I created for Audiobooks and Series. The hobbit and the Silmarillion are.
Ive checked on my tagging software and everything is tagged the same. 

When I originally set up the database i didn't have album .nfo's. I was using all local information and correctly tagged. However I noticed tags were not showing in the album information box. So i thought, perhaps it was some quirk with m4b files, and a solution would be to add an .nfo. I added an .nfo with information i posted above and i can now see the genres in the information box, but its still not going into the nodes.

Could it be the naming of the file? I haven't renamed most mp3's and they still have tags recognised.

[Ceefaxer]

So renaming as .m4a files does get the tags working, but you lose the ability to track position and chapters are flattened into one file.

[Ceefaxer]

So the answer for me at least was to use mood tags in an .nfo. Create the node to location and just have a mood tag.