MGM Blu-ray 

MGM Blu-ray

DTS LaserDisc

This 5.1 mix is outstanding and all versions sound excellent. The Blu-ray HDMA is good but the DTS LaserDisc edges out over everything.

Universal HD-DVD

Universal HD-DVD 

The Universal Blu-ray is slightly filtered and DNR'd compared to the HD-DVD, and the Universal 4K Blu-ray, on top of being upscaled, adds additional DNR and is softer than both previous HD releases.