noun
reverse playback
Refers to playing audio or video in reverse. Common in media editing and special effects contexts.
その動画を逆再生すると、面白いメッセージが聞こえる。
When you play that video in reverse, you can hear an interesting message.
巻き戻し is rewinding (going back to an earlier point), whereas 逆再生 is playing the content backwards.
Compound of 逆 (reverse) and 再生 (playback). A straightforward modern technical term.