"...I can't imagine what a 3rd disc would include." Have you seen the extensive DVD-Rom features for Pirates? If you don't have a DVD-ROM, you didn't see these. Methinks those and web featurettes and sneak previews for Pirates II and III will make up the third disc...sort of like the...
"The current transfer is pretty bad. Take a look at the DTS sampler disc that has a clip from POTC, the PQ blows away the commercial release." Didn't the "commercial release" disc rack up a boatload of DVD nomimations? And didn't it win some as well?