Some tasty items there, Maiden Japan Venezuela, wow!
I don't suppose you know if there is anything significant about that Metal Mania (Compilation featuring Transylvania and Sanctuary) that I posted earlier in the thread, as I noticed I also have the Holland pressing of it as well. If I've no idea why I bought one copy of it, I certainly haven't a fuckin' clue why I have two copies!
Metal Mania, released as Heavy-Duty in the UK & Mexico, was actually the fourth compilation album to contain Maiden tracks. In case you're wondering about the previous 3, they are:
1. Metal For Muthas (as we ALL know)
2. O Rock Em Stock (Portugal) - The first non-UK compilation album containing a Maiden track
3. Musical Times (Germany)
So if you're a serious Maiden collector, it does make sense to have this album and if you're a true insane collector, you should have buy one Metal Mania and one Heavy-Duty... same album, different country see?