Always keep the original, uncompressed source file on your PC before attempting to compress or trim a game. If the compression process corrupts the file, you won't lose your game data. The Bottom Line
Maximizing Your 3DS Library: A Guide to Game Compression If you’ve modded your 3DS, you’ve likely run into the dreaded "SD card full" message. While the average 3DS game is around , high-end RPGs and massive titles like Fire Emblem or Dragon Quest can easily push 4 GB, eating up space fast.
Compression isn't just about saving a few MBs; it’s about efficiency. While the 3DS supports up to 32 GB SD cards natively, power users often find even that limit tight when dumping physical collections. Space Savings
If you are running a custom firmware (CFW) like Luma3DS, the best way to save space is to convert your games into the format. This format compresses the game data but keeps it playable.
Avoid random “3DS games highly compressed 100MB” pop-up sites – they’re often malware bait or fake downloads.