Pink Noise was a series of unrelated OVAs issues by C.Moon, the "adult" label of Bandai Visual. It consisted of four titles:

1. Call Me Tonight (1986)
2. Gakuen Tokusou Hikaruon (1987)
3. Maryuu Senki, 3 episodes (1987-1989)
4. Body Jack (1987)

It's not clear what they had in common, except perhaps some sexually suggestive material (hence "Pink"). In Japan, they were only issued on analog media (VHS and laserdisc). Some encodes claim to be DVD sources, but they are probably based on laserdisc rips in a DVD ISO container.

Call Me Tonight, the first OVA in the series, was considered to be near-hentai when it was released. Today, it looks positively tame compared to shows like Kaifuku Jutsushi no Yarinaoshi. A hardsubbed English release from Toy-RC, based on a laserdisc rip, has been available for more than a decade. It's a fine effort, but it's showing its age. So when a laserdisc of Call Me Tonight showed up in one of Orphan's multi-disc purchases, I suggested redoing the show. And here it is.