Well, my answer for you is "yes". Normally, the nintendo ds roms you've seen on the websites which rank high in google or yahoo are safe to download. Sites that rank high usually indicates visited by tons of visitors everyday. Well, logically speaking, these are sites that have visitors back and return for getting 'something' they want. If the nds roms they shared contain viruses, I doubt google will rank them on their top few pages. Google is smarter than you think!

Another point is that due to the small compact size of these nintendo ds roms, the chances of downloading ds roms which are infected by viruses or spywares are low. Normally it wouldn't. Unless you're downloading homebrew ds games, that's another story. Homebrew ds games can be created by any user in this world, even you or any hacker. Few years ago, there's a ds virus call dsbrick. It exists only in homebrew ds applications such as r0mloader.zip and taihen.zip. You better hope you wouldn't get them in any time in the near future because once you get them, all your critical system files will be deleted in the matter of seconds. You couldn't reboot your ds or even cure it yourself!

It sounds terrible, isn't it? Well, as long as you keep an eye on r0mloader.zip and taihen.zip before downloading the homebrew apps, you can stay no worries playing any ds games and roms safely!

I've been a super fan of ds downloads for the past many years. I encounter more times of downloading incomplete ds roms than the whole complete game. Unfortunately speaking, this is the real case in the real life.

Viruses download is never an issue. As long as you constantly update your anti virus in your computer, you can hardly download any ds roms that contain virus. My chances is zero out of hundreds times.

There are 3 bigger problems for ds gamers currently. First of all- Many of these ds roms are existing in demo version. Secondly- Many of the popular ds roms are in japanese version or other versions instead of English version. Lastly, many of these ds roms are homebrew made. They are not the original game.

No one wishes to play demo or trial version unless their intention is to test games before making the purchase decision. No one wishes to play nds rom games which are in other languages unless you know that language. No gamers in the world wish to download homebrew mario games when the link that show is "download mario bros".

So, where should you download ds roms from quality sources?

Well first of all, let's define the term "quality sources". Quality sources should give only ds roms which are quality. They provide both full and trial versions roms for you. Apart from that, you should be able to find any ds rom and games in their database. The latest or the old games.