Well, it sort of depends on what you mean by folk music. The "real original" folk music has been issued in box sets from the CBC from time to time (that is, music fron Newfoundland - B.C. from 1650+). There have also been a number of beautiful box sets of Quebec music (I have one mammoth 5 disc thing). There are also some important surveys carried out by Folkways (e.g. Ken Peacock).

Anglo Folkie records would be different -- e.g. a recent 4 disc set from Vanguard of Ian and Sylvia; the reissuing of the early Gordon Lightfoot albums, etc.

yours,

Peter T