I would agree that most songs on ocr are in my "2 stars out of 5" category in WMP.
However, there are some real gems in there. I've replaced most songs in the game with remixes from OCR/AC/piano version/orchestrated versions but some are much better stock then remixed. I did edit about 15 or so of them to fit in game in audacity as one of my criterias is that it ressembles closely the original. And I despise trance which OCR is rampant with.