WARNING, THE FOLLOWING 4 FAN RIFFS DON'T PLAY,
Doctor Who: Spearhead From Space Part 1,
Atomic Treatment & Mr B Natural: Superargo and the Faceless Giants
Atomic Treatment & Mr B Natural: The Earth vs. The Flying Saucers
MICRORIFFS-SUBVERSION & ESPIONAGE
Maybe they will be fixed in the future but I wouldn't purchase them unless they add some type of corrected notice to the description.
For the greater part, all riffs I have downloaded work fine, even others by Atomic Treatment, who I really like.
I just wanted to make buyers aware of my experience.