You can download the albums at the World's Jukebox site which StephenH mentioned. If you're having any difficulty finding an album from a particular country (most but not all of them are grouped together in a series of posts), go to the Categories section and click on the country name you're seeking. On some of the pages, it says specifically where to click to download. On others, click the links below where it says "Listen here." Here's the link to Volume One (the first post in the series of posts which include most of the albums):

World Library of Folk and Primitive Music vol.1:Ireland