After the cleaning cycle, when the disc is removed, the static charge dissipates releasing any dust from inside the DVD drive.

Laser lens cleaner for automotive CD and DVD players ... Not recommend for multi-disc CD players. Not intended for use with Blu-Ray players, WiiU, XBOX ONE or PS3/PS4.

[Rob Smith] wanted to clean some floppies in style and made a Disco Rube Goldberg-Style device for the job. Starting with a disk caddy on linear rails, [Smith] has a track for the floppy to follow.