It just makes so much sense.
- It's supported fully by the Blu-Ray spec.
- You could fit entire seasons of SD-constrained shows on like two discs
- Even then they would be given a much better codec and far more bitrate than the old DVD which would significantly reduce compression artifacts.
- You could still have lossless/uncompressed audio
- It means we can avoid this bullshit where studios just take an old SD master and throw it into a crummy upscalers to make it "HD" and release it upon the unsuspecting masses (looking at you, BBC)
Like, please. Maybe we can avoid potential backlash from home theater nerds by making a special new case molding or logo for it. Like, instead of blue it could be red-- no wait that's HD-DVD, well, it could be green-- no wait that's XBox, well it could be yellow or something, with a modified logo that's like "Blu-Ray SD". Please I'm just begging at this point.