Before calculating size, you must understand the anatomy of a 3DS ROM and the scope of the library.
Most "complete sets" circulating on private trackers are missing the last 6 months of eShop exclusives or include corrupt dumps. If you see a "3DS Complete Set" advertised as 50GB or 200GB – it is a scam or only contains a tiny fraction of games. 3ds Complete Rom Set Size
ROMs, or Read-Only Memory images, are digital copies of games that can be played on a console or emulator. They are essentially a snapshot of the game's data, extracted from the original cartridge or downloaded from the internet. For the 3DS, ROMs are often used for backing up and playing games, especially for those who have purchased the console and its games second-hand. Before calculating size, you must understand the anatomy
Identify the to avoid if you're low on space. ROMs, or Read-Only Memory images, are digital copies