Blu-spec CD2: Any Difference?

Long after the Western world moved to digital downloads and streaming, CDs reigned supreme in Japan; only now is Japan widely adopting music streaming. Western collectors value Japanese CDs for their nicer packaging and apparent sonic superiority, but even in Japan, imported American and European CDs are cheaper than their locally-made counterparts. To encourage domestic purchases, Japanese labels often add bonus tracks and/or nicer packaging, but they also flaunt their specialized, supposedly superior CD manufacturing technologies.