Windows Explorer 5-star rating not working for mp3s anymore

With a fresh install of Win 7 I can rate my mp3's within windows explorer using the rating feature. In time that feature no longer works, a while back I discovered that if I ran them threw Mp3Tag and I could rate them again. Now that does not work anymore. Any ideas?

I have found that there is a way to add rating to Mp3Tag, but does not work ideally, 1 = 1-star, 2 = 4-star, 3, 4 and 5 = no star...

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