NDS files contain a lot of "dummy data" (empty space). 7-Zip can shrink a 128MB game down to 30MB, making it much faster to download and store.
I can give you the or app settings to make this process instant! 7z to nds converter
Converting 7z to NDS: The Ultimate Guide for Retro Gamers If you’ve recently downloaded a collection of classic DS titles, you likely found them packed inside files. While 7-Zip is great for saving space, your Nintendo DS hardware or emulator cannot read it. To play your games, you need to extract the .nds file hidden inside. 🕹️ What is a 7z to NDS Converter? NDS files contain a lot of "dummy data" (empty space)
is the actual game ROM (the clothes inside the suitcase). 7z to nds converter