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To search for websites that enables you to download nds roms, you can go to Google or Yahoo. You need to type in a specific keyword for you to find the right website. It is up to you to find those keywords and scrutinize each website you find. There will be thousands of websites that will offer you good sources to download. All you need is to use the right keywords, and click only on those sites which you think offer legitimate ways to let you download ds roms.
Another good way of determining a reliable and authentic website to download ds roms is to check the time of establishment of the company or of the website itself. If the website is offering downloads for a long period of time, chances are, a lot of people have already downloaded such games and are satisfied with the results. You can also check out their comments and suggestions section or if you cannot find them, you can look for the forums tab and read the honest consumer feedback from site like http://www.downloaddsgame.com/
You also need to see if the website offers you to download ds roms or dsi roms of full versions of the game or just some sort of a trial version. One of the reasons why some websites give these download for free is that they only offer the trial version whereas the full version requires you some sort of payment. Most of these websites are not in line with people who keep their website free from viruses and Trojans. And with that reason, a lot of these trial versions have viruses, malwares, or Trojans embedded within them.
You should also check out some details regarding the website. If you try to download free nds roms and if it leads you to another page on another website, tendency is, there is something amiss. This should be a sign that the website is not safe for you to hang around.
It is very important that you scrutinize every website that offers you free downloads. A lot have fallen victims of such scams. Make sure you are not one of the victims. Remember tokeep these important things in mind and you are guaranteed to locate a safe website to download nds roms of your choice.
Finally, it is utmost important to read the customers recommendation for which sites that allow you to download ds, lite and dsi roms safe and fast in http://www.downloaddsgame.com/