Pinguy OS 14.04 Mini Thumbnail HELP

I've been trying to figure out how to make my mp4 & mp3 embedded thumbnails shows instead of it downloading them with the cover plugin and IMDB thumbnailer. I uninstalled IMDB thumbnailer & now I'm not getting any thumbnails media files. I did before in 13.10, but can't remember how I did it. Over the years I painstakingly embedded cover art to every media file on my computer. I'm talking 1000's of files. I'm on satellite internet & am very limited on data usage. IMDB thumbnailer was downloading a lot of the wrong thumbnails, & the thumbnails wasn't as nice as mine. I have all my video files color coded. Red DVD, Blue 720p, & Black 1080p. I had it working in Gnome Ubuntu 14.04 using Nemo.
Any help would be greatly appreciated.

Loving Pinguy OS 14.04 Mini!