When I was in Amsterdam last, I heard a song from the new musical version of “Wat Zien Ik?”. Searching for an MP3 version of it, I came across the fantastic word MP3’tjes – surely only the Dutch language could add a diminutive to an acronym.
For cultural cross-referencing purposes, I should note that the site I found this word on described itself as “Het forum van DE Nederlandse Backstreet Boys fansite”. So if you were confused by the large number of Nederlandse Backstreet Boys fansites out there: this is the one to go to.