Editing Picture disc (section)

==Types of picture discs==
[[File:7inch5inch ubt.jpeg|thumb|[[Culture Club]] "Move Away" picture disc in the unusual 5-inch format, resting on a 7-inch single for comparison]]

On some picture discs, the images used were meant to create an [[optical illusion]] while the record was rotating on the turntable (as in the B side of Curved Air's ''Airconditioning''), while others used the visual effect to add to the music&nbsp;— for example, the 1979 picture disc of [[Fischer-Z]]'s ''The Worker'' featured a train which endlessly commuted around the turntable, reinforcing the song's message.

Later picture discs included liquid light show style fluids between the vinyl, Rowlux 3D effect film, diffraction rainbow film, metal flake (''vide'' [[Bois-Clair|examples here]]), pressure-sensitive liquid crystals that changed color when the record was picked up, and a real holographic record.{{Citation needed|date=May 2012}}

Shaped picture discs became common in the 1980s.<ref>Steve Binnie ''The Sound of the Crowd - A Discography of the 80s (Third edition)'', Lulu 2014</ref> These are mostly considered to be collecting items, rather than for listening as the sound quality is inferior to regular vinyl.<ref>{{cite web|url=https://coloredvinylrecords.com/blog/awesome-looking-shaped-picture-discs-showcase/ |title=Showcase of some cool looking shaped picture discs |publisher=coloredvinylrecords.com }}</ref> Shaped picture discs are manufactured at full 12 inch size and then cut in various shapes using a cutting tool. Shaped picture discs are always singles rather than albums and are usually limited to a few thousand copies.<ref>{{cite web|url=https://www.rarerecords.net/record-info/picture-discs/#shaped |title=Shaped picture discs |publisher=rarerecords.net }}</ref>

[[Interview disc]]s are quite commonly pressed as picture discs as well.<ref>{{cite web|url=https://www.rarerecords.net/record-info/picture-discs/#interview |title=Interview picture discs |publisher=rarerecords.net }}</ref>

In the 1950s, "movie" discs showing a repeating [[animation]] were produced, using the [[Praxinoscope]] technique, an example here: [https://www.youtube.com/watch?v=L9-lzMAfG-Q]