Counterpoint, I'd love to have this info. I grew up long enough ago to know (and do) disk defrags and the game is very similar to tetris in how it is fun and relatively easy. But iirc defrags made multiple passes, and it is not very clear whether the blocks in game correspond to pieces of the same file (where line 1 & 2 should be together) or of different files (where it does not matter). It's a nice game nonetheless!