Paul... the ingestion of the .nfo data works fine. The problem is that the category tag value used by the display titles dialogue doesn't match.
Here's an the .nfo file is used for one of my VOB files (M:\Home Movies\iMemories DVDs\1992-10-04 to 1993-05-24 DVD#01\VIDEO_TS\VTS_01_1.nfo):
<?xml version="1.0" encoding="utf-8"?>
<homemovie>
<title>1992-10-04 to 1993-05-24 DVD#01</title>
<sorttitle>1992-10-04 to 1993-05-24 DVD#01</sorttitle>
<year>1992</year>
<genre>Home Movie</genre>
</homemovie>
I have set the display field for "Home movies" to be %TITLE%
Attachment 717
You can see that the metadata was updated according to the .nfo file contents. But the display title is from the file name not the metadata %TITLE% field.
Attachment 716
If I manually change the category of the file from "Home movie" to "Home Movies", (add an 's') so that it matches the field name in the display title dialogue, my display name is now shown properly.
Attachment 718
Is this clearer? This is why I requested that Display Titles dialogue should be changed to recognize files categorized as Home Movie (or both Home Movie or Home Movies). If you still want the nfo file or anything else, let me know.