Perhaps the album wasn't released because so many of the tracks were on va's?  
or 
  
perhaps it's bootleg: someone got hold of unrlsd tracks and was planning to release the album without artist's permission? 
  
Lepton you probably know what I'm talking about when I say you can easily spot a HF track when you hear one.  
  
the tracks on 'singles collection' are so good and so similar to other HF material that I quite doubt they're fake.  
  
and indeed there's a fake album floating around the net, called "reboot" or something , I can't remember. This isn't it.  
  
Hope my ansa makes more sense now 
  
-alfapie-