MVI stands for Musical Video Interactive, a DVD

DVD

A DVD is an optical disc storage media format, invented and developed by Philips, Sony, Toshiba, and Panasonic in 1995. DVDs offer higher storage capacity than Compact Discs while having the same dimensions....

-based means of packing audio, video and interactive visual content (for example lyrics) onto one disk. The first commercial disc released with this technology was Snakes & Arrows

Snakes & Arrows

Snakes & Arrows is the 18th full-length studio album by the Canadian rock band Rush. Co-produced by Nick Raskulinecz, it is Rush's first studio outing since 2004's Feedback, and their first complete studio album since Vapor Trails in 2002...

by Rush

Rush (band)

Rush is a Canadian rock band formed in August 1968, in the Willowdale neighbourhood of Toronto, Ontario. The band is composed of bassist, keyboardist, and lead vocalist Geddy Lee, guitarist Alex Lifeson, and drummer and lyricist Neil Peart...

 on May 15, 2007.

The audio content is provided in multiple formats, including a high-definition version (a minimum of 24-bit at 48kHz sampling) and an MP3

MP3

MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is a patented digital audio encoding format using a form of lossy data compression...

version for copying to portable audio players. The video content is compatible with DVD video, and can also optionally include high-definition video.