Why the name Blu-ray?

The name Blu-ray is derived from the underlying technology, which utilizes a blue-violet laser to read and write data. The name is a combination of "Blue"(blue-violet laser) and "Ray"(optical ray). According to the Blu-ray Disc. Association the spelling of "Blu-ray" is not a mistake, the character "e" was intentionally left out so the term could be registered as a trademark.

The correct full name is Blu-ray Disc, not Blu-ray Disk(incorrect spelling).
The correct shortened name is Blu-ray, not Blu-Ray(incorrect capitalization) or Blue-ray(incorrect spelling).
The correct abbreviation is BD, not BR or BRD(wrong abbreviation).