Topic summary
Hot swappable

Extracted from the Wikipedia article Hot swapping.
Gaming
Although most contemporary video game systems can interchange games and multimedia (e.g. Blu-rays) without powering down the system, older generations of systems varied in their support of hot-swapping capabilities. For example, whereas the Sony PlayStation and PlayStation 2 could eject a game disc with the system powered on, the Nintendo Game Boy Advance and the Nintendo 64 would freeze up and could potentially become corrupt if the game cartridge was removed with the power on. Manufacturers specifically warned against such practices in the owner's manual or on the game cartridge. It was supposedly for this reason that Stop 'N' Swop was taken out of the Banjo-Kazooie series and Donkey Kong 64. With the Sega Genesis/Mega Drive system, it was sometimes possible to apply cheats (such as a player having infinite lives) and other temporary software alterations to games by hot swapping cartridges, even though the cartridges were not designed to be hot swappable.