This usually refers to a technical correction. Older digital files often suffered from "interlacing" issues (horizontal lines during movement) or "audio-sync" drift. A "Fixed" version has undergone post-production to ensure the movement and the music are perfectly aligned.
If you are revisiting this classic "Part 1" workout, remember to: This usually refers to a technical correction
Ensure your aerobic step has a non-slip surface. This usually refers to a technical correction
Following the "Part 1" choreography helps improve proprioception and footwork. This usually refers to a technical correction
Even "fixed repack" vintage workouts can be surprisingly intense!