Japan's Association of Copyright for Computer Software president Yutaka Kubota expressed to Famitsu grave concerns about the proliferation and use of Nintendo DS flash cart devices, such as the R4DS.
Referring to the volume of illegally downloaded DS software, Kubota remarked, "It's not a matter of numbers anymore," adding, "The fact is that you can download any Nintendo DS game as much as you want, so there's no way to even calculate the damage. This is an issue that affects our national interests, and personally, I see it as a form of information terrorism that is crushing Japan's industry."
In the interview translated by 1UP, Kubota called on the magazine's readers to stand firm against piracy, saying, "I want them to be aware that unless we do something, nobody will be able to make the games they love to play. Not only will gamers wanting to play new games not be able to play anything, but people who want to join the game industry in the future will have their dreams trampled upon."
Japan's laws do not currently forbid the purchase of devices like the R4, nor the downloading of commercial software for use with them. A new copyright bill under review would make it illegal to download copyrighted media, but doesn't expressly give authorities the right to arrest offenders.