How to Take Care of Old Game Cartridges and Discs

Cartridges and discs were built to survive normal use, and most of the ones still circulating decades later are fundamentally sound. What kills them early is bad storage: damp basements, direct sun through a window, stacking discs without cases, or leaving cartridges in a hot car. The good news is that a little routine care goes a long way, and none of it is expensive or technical.

§01Why do old cartridges stop working?

Cartridges usually fail to read because of dirty or oxidized connector pins, not because the internal chip has died. Dust, moisture and years of contact with a console’s connector slot cause a thin layer of grime or oxidation to build up, which breaks the electrical connection.

This is why a cartridge that gives a blank or flickering screen will often work again after the contacts are cleaned. Actual chip failure or battery death (in cartridges that save games internally) does happen, but it’s much less common than simple dirty contacts. If a cartridge with battery-backed saves has started losing its save data, that’s usually the small internal battery reaching the end of its life rather than anything you did wrong.

§02What’s the right way to clean cartridge contacts?

Gently wipe the metal contacts with a dry, lint-free cloth or a soft eraser designed for electrical contacts, then let any residue settle before reinserting. Avoid household cleaning sprays, alcohol in large amounts, or anything abrasive, since these can strip the plating on the pins.

A few practical points worth keeping in mind:

• Never blow into a cartridge. It feels like it helps, but breath carries moisture, and moisture on contacts encourages the oxidation that caused the problem in the first place.
• Avoid metal tools, knives or sandpaper on the pins. Aggressive cleaning can remove the thin gold or nickel plating and expose the base metal underneath, which corrodes faster.
• If a specialist contact cleaner is used, apply it to a cloth or cotton swab rather than spraying it directly into the cartridge, and let it dry fully before inserting it into a console.
• Clean the console’s cartridge slot occasionally too — a dirty connector on the hardware side causes exactly the same symptoms as a dirty cartridge.

For a deeper look at what’s actually happening inside a cartridge and why some fail differently than others, the how games work hub is a good starting point.

§03How should discs be cleaned safely?

Wipe a disc from the center outward toward the edge, never in a circular motion, using a soft microfiber cloth. Circular scrubbing follows the direction of the data track and can turn a light scratch into unreadable data loss, while radial wiping crosses the tracks and is far less likely to cause skipping.

Plain water is usually enough for fingerprints and dust. For stubborn smudges, a small amount of mild soap diluted in water works, followed by a dry wipe. Commercial disc-cleaning kits exist and are safe, but they’re rarely necessary if a disc has been stored reasonably well. What discs really don’t need is deep scratch-repair kits bought from novelty stores — some of these do more harm than good if used aggressively, and a disc with genuinely deep scratches may simply be reaching the end of its usable life.

§04How should cartridges and discs be stored long-term?

Store both upright in their original cases, in a stable, dry, moderate-temperature room out of direct sunlight. Heat and UV light are the two biggest long-term threats — they warp plastic, degrade labels, and in the case of discs, can affect the reflective layer that the laser reads.

A few habits make a real difference over years, not just months:

• Keep discs in their cases rather than loose in binders or spindles, which press against the reading surface and encourage scratches.
• Avoid attics, garages and basements where temperature and humidity swing widely with the seasons.
• Don’t stack cartridges flat in large piles for long periods — upright storage on a shelf reduces pressure on the case and connector edge.
• Keep original box inserts and manuals in a separate, flat container if display space is limited, since cardboard degrades differently than plastic and benefits from its own storage approach.

Anyone building out a broader collection setup might also find it useful to look at general advice in the gaming hardware guide hub, which covers how consoles and accessories age alongside the media that runs on them.

§05Does direct sunlight actually damage cartridges and discs?

Yes — prolonged sunlight fades labels, warps plastic shells over time, and can degrade the print on disc art and box covers. It’s one of the most avoidable causes of cosmetic and structural damage in a collection.

This is less about a single afternoon on a windowsill and more about years of cumulative exposure. A cartridge that sits in a sunny display case for a decade will often show a visibly faded label compared to an identical one kept in a drawer, even though neither was ever “used” in the traditional sense. If display is important, indirect light or a shaded shelf location protects both the label art and the plastic underneath.

§06Can cleaning ever make things worse?

Yes, and it’s usually from over-cleaning rather than under-cleaning. Repeated alcohol use on cartridge contacts, aggressive circular polishing on discs, or using anything abrasive on either can cause more damage than the dust or grime being removed.

The general rule is to clean only when there’s an actual symptom — a game that won’t boot, a disc that skips or won’t read — rather than as routine maintenance on media that’s already working fine. Media that reads correctly doesn’t need to be touched. This is also a good moment to be cautious about cartridges bought secondhand with unusual wear patterns or mismatched labels, since some of what looks like damage is actually a sign of a counterfeit board rather than age; the guide on spotting a fake or counterfeit retro cartridge covers the warning signs in detail.

§07Is it worth backing up or preserving old games another way?

Many collectors keep original cartridges and discs as the primary copy while relying on modern hardware or subscription services for everyday play, treating the physical media as an archive rather than daily-use equipment. This reduces wear on original media considerably.

How games are preserved, and why it’s more complicated than just “keeping the disc safe,” is a bigger topic than cleaning alone. For readers interested in the broader picture — why some games are at real risk of being lost entirely, and what emulation does and doesn’t solve — the articles on why preserving old video games is so difficult and what emulation actually is and how it works go into more depth. It’s also worth understanding what the shift from cartridges to discs actually changed, since the two formats age in genuinely different ways and fail for different reasons.

§08What about buying old media secondhand?

Inspect connectors, disc surfaces and case condition before buying, and test the game if possible rather than relying on appearance alone. A cartridge or disc that looks clean can still have a worn connector or a hairline crack that only shows up during play.

For anyone actively building a collection through secondhand purchases, it’s worth reading up on what to check before handing over money, since the same care applied after purchase should really start before it. The guide on what to check before buying a used game pairs well with everything above — cleaning and storage protect an investment that starts with a careful purchase. Broader buying strategy, including when secondhand retro prices tend to move, is covered across the buying advice archive and the retro and preservation archive.

None of this is complicated, and that’s really the point. Old game media was designed to last, and the handful of habits above — clean sparingly, store upright, keep it out of the sun, and don’t force a cartridge that won’t seat properly — are usually enough to keep a collection playable for decades to come.