Why would anyone do this?

discs used in theaters in 1993. Fans prefer this because it lacks the "near-field" remixing and dynamic range compression found on many home video releases. Availability and Restoration Status

The “work” means this is a — someone took a 35mm print, telecine’d or scanned it, synced the 6-track DTS timecode audio, and released it as a digital file.

Because these are fan-made restorations and not official studio releases, they are generally found in enthusiast communities:

: This version typically includes a high-fidelity sync of the original Cinema DTS