I had one of those, it was a CD scratch remover / cleaner. It actually worked somewhat - you could restore some discs that were too scratched to use.
It was basically a leather (maybe) band wrapped around the spiral wheel that buffed the CD in a radial motion (center to outer) at the same time that the disc would slowly rotate around a spindle. You’d end up with radial buff-marks all the way around the CD, which looked a little bit similar to the pattern of the blue spiral thing in the center, coincidentally.
I had one of those, it was a CD scratch remover / cleaner. It actually worked somewhat - you could restore some discs that were too scratched to use.
It was basically a leather (maybe) band wrapped around the spiral wheel that buffed the CD in a radial motion (center to outer) at the same time that the disc would slowly rotate around a spindle. You’d end up with radial buff-marks all the way around the CD, which looked a little bit similar to the pattern of the blue spiral thing in the center, coincidentally.