Hi. I'm trying to get the first 4 albums of Led Zeppelin 80s remasters by Barry Diament, but I'm having a hard time. Are all the 80s CD versions listed on discogs from the 80s, Barry's work? I've succesfully tracked one version of the first 3 on discogs: I: Led Zeppelin - Led Zeppelin II: Led Zeppelin - Led Zeppelin III II: Led Zeppelin - Led Zeppelin III However I'm wondering if there are more version I can choose from and also where can I find is LZ IV? Thank you!