DS game cartridges are immune to airport X-ray and magnetic fields. They are solid-state ROM chips in a plastic shell—no magnetic media, no moving parts, no photosensitive layer.
| DVD | DS Cartridge |
|---|---|
| Organic dye / phase-change layer | Mask ROM / Flash ROM (silicon) |
| Read by laser (optical) | Read by electrical contacts |
| Sensitive to heat, scratches, strong EM | Rated for 10k+ insertions, -20°C–60°C |
| X-ray *can* degrade dye over many scans | X-ray passes through silicon harmlessly |
Cartridges allowed in carry-on and checked. No need to declare. Officers may ask to inspect—hand them the case.
Bottom Line: Your DS games are safer than your laptop in the X-ray. Protect from crushing, not radiation.