Prior to TV Pack '08 VMC kept a thumbnail cache for videos and pictures in video.db and image.db files stored at C:\Users\username\AppData\Local\Microsoft\ehome.

So if you used jpg images as artwork you might from time to time need  to delete the video.db cache to force a refresh of your thumbnail artwork.

With TV Pack '08 things have changed, now C:\Users\username\AppData\Local\Microsoft\ehome contains a single cache file for video and pictures called ehthumbs_vista.

However, the priority of whether to use this and your chosen jpg images would appear to have been demoted to last place.... and now the media center interface will display a thumbnail from the video file instead of your prefered jpg image. But this will only happen if the video thumbnail has been created while viewing video files in WMP11 or from Windows Explorer. Basically it looks like the Windows Explorer cache takes top priority over everything else.

So if you want to restore your chosen JPG artwork you need to clear out the Explorer cache and never view your video folders from the OS in thumbnail view again... or at least if you do you will need to delete the cache again.

The Explorer cache can be found here;

C:\Users\username\AppData\Local\Microsoft\Windows\Explorer\

This will contain a number of thumbcache files, delete them and when you return to your Media Center Video folders your jpg artwork will be reinstated.

rgreenpc:

Buellpilot - Nice find... btw are you a pilot? Part 121 CMEL here

No just the rider of a Buell motorcycle... who pretends he is a WWII Mustang pilot while overtaking cars and making machine gun noises...