I tried adding your movie using the DVD preserved format and, for some reason, I could not get it to work. It kept scraping the movie "Video". But as soon as I removed the name extension Disc1 and Disc2, it scraped the movie ok. Log if someone wants to see the scrape...
https://pastebin.com/cups2wkm
Walt Disney Treasures - Your Host, Walt Disney (2006) Disc1\VIDEO_TS\VIDEO_TS.IFO
Walt Disney Treasures - Your Host, Walt Disney (2006) Disc2\VIDEO_TS\VIDEO_TS.IFO
I then tried the iso format named as follows
Walt Disney Treasures - Your Host, Walt Disney (2006) Disc1\Walt Disney Treasures - Your Host, Walt Disney (2006) Disc1.iso
Walt Disney Treasures - Your Host, Walt Disney (2006) Disc2\Walt Disney Treasures - Your Host, Walt Disney (2006) Disc2.iso
And it worked as expected.
Wiki page...
http://kodi.wiki/view/Naming_video_files...tacking.29