If you miss defragmenting your C drive, there's a website that lets you recreate the experience complete with hard-drive chunking sounds
In the same way it's satisfying to slowly transform a pile of dirty dishes into clean ones or a level full of living Doom enemies into dead ones, I remember getting a kind of enjoyment out of defragging the hard drive of my 486 in the late '90s. The visualization was a big part of it, that Windows app depicting a hard drive slowly transforming from messy navy to a cleaned-up sky blue via segments that became red as they were picked up. But the sound was a pleasingly physical thing too, a chuntering reminder that all this digital data had a real-world presence.
