I looked through Wikipedia and Discogs, but can't find any record of these bonus cover songs ever being released on a physical CD. I would buy them on CD if I can find it.
Have they only been released in digital format so far? Is there a legit source to buy them in FLAC format?
Do You Believe? (Cardigans Cover)
Ghosts (Japan Cover)
Caress (Drive Like Jehu Cover)