Peter,

If you go to an online CD store like CD Universe, many of the albums have sound files so that you could hear the tracks by the different artists and see which one is the version you are looking for.

I totally endorse Margaret's recommendation on the AllMusic site, and also its counterpart, the AllMovies site. Remarkable sources of info. I've been using these two sites since I first stumbled into the Internet about 7 years ago.   

Helen