What is the official expansion of the acronym "DVD"?

What is the official expansion of the acronym "DVD"?

• Data Varience Disc
• Digital Versatile Disc
• Digital Video Disc
• Digital Video Data 

EXPLANATION

DVD (an abbreviation of digital versatile disc) is a digital optical disc storage format invented and developed in 1995.

 DVD is the acronym for Digital Versatile/Video Disc; is with 4.7GB capacity, instead of CD with 700MB. Both CD & DVDs work with Optical/Light/Laser beam technology. Data is available in 'PIT" & "LAND" for "0" & "1". Hence the media CD/DVD disc is "DIGITAL" media.