I really have no idea... I was never much of a bootleg collector so I don't know all that much about them. I got these second hand a long time ago and I was told they were all originals, but I don't really know how to confirm that for sure. i seem to recall something about some of these being pressed initially with labels, but then some of the later ones didn't have labels? It's so hard to tell with this stuff though. I tried to give the best explanation as I could in my listing, so I guess I'll just see what happens.