Frodo w/Previously Scraped Local Artwork

I recently upgraded to one of the nightly Frodo builds (removed existing profile and did a complete clean install). I re-added my sources, and after re-building my movie library, found that most of the posters and fanart were missing.

I use Media Companion to store all of the posters and fanart with the movies, and the format looks like this:

D:\Movies\<movie name>\VIDEO_TS\
D:\Movies\<movie name>\VIDEO_TS\VIDEO_TS-fanart.jpg
D:\Movies\<movie name>\VIDEO_TS\VIDEO_TS.tbn

OR (if the movie isn't in DVD video format)

D:\Movies\<movie name>\<movie title>.mkv
D:\Movies\<movie name>\<movie title>-fanart.jpg
D:\Movies\<movie name>\<movie title>.tbn

For the movies that are in VIDEO_TS folders, none of the artwork shows up. For the movies that are in .mkv format, the artwork shows up just fine.

After reading some of the Frodo posts on artwork, I renamed "VIDEO_TS-fanart.jpg" to just "fanart.jpg" and renamed "VIDEO_TS.tbn" to "poster.jpg" and moved them from inside the VIDEO_TS folder, up one level to the <movie name> folder. After re-building the shares again, the artwork seems to show up fine.

I would like to make sure that this is now the expected usage model going forward. I don't mind moving the images, as I never liked the files named "VIDEO_TS" anyway. Could someone please confirm my understanding?

Assuming that this is the correct usage model going forward, I need to modify both the location, and the name, of several thousand images in order to be compliant to the new model. Does anyone have any suggestions for a efficient way to do this? I assume at some point Media Companion, will be updated to scrape the images to the Frodo spec, but until then, some sort of advanced copy utility would be handy to "fix" the movies that are already scraped.

BTW. I am running on Win7, otherwise I would probably script something up in perl on the unix side.

Thanks