Double Dash Highly Compressed: Mario Kart

: In some cases, using an RVZ file can actually improve loading times because the computer has to read less physical data from the drive.

: Legally, you should only use ROMs or ISOs of games that you physically own. Dumping your own disc using a modded Wii is the safest and most legal way to acquire the file. Mario Kart Double Dash Highly Compressed

In the world of emulation, a "highly compressed" file refers to a game ROM or ISO that has been processed to take up significantly less disk space than its original physical counterpart. : In some cases, using an RVZ file