For many Nintendo 64 collectors, if they want to convert their original cartridges into ROM backup, they usually need to purchase an additional special card reader or dump device. But now the situation seems to have changed. Mod player mntorankusu recently released a tool called N64 SwapDumper, which claims to be able to complete N64 game ROM and save backup with only one flash card.
The biggest feature of this tool is that it does not require additional professional dump hardware, as long as you have a flash card that supports SD cards. Currently, the developers have only confirmed testing on SummerCart, but in theory other similar devices may also have support in the future.
Complete ROM backup by repeatedly changing cards
According to the developer notes, the way N64 SwapDumper works is pretty crazy.
Players first execute the program through the flash card, and then insert the original N64 cartridge they want to back up into the console. The program will copy the ROM content into the host RAM as much as possible, then insert the flash card back and write the read data to the SD card.
Due to the limited memory of the N64 host, the action of “inserting the flash card and inserting the original cassette” must be repeated until the entire ROM is completely stored in the SD card.
In order to reduce the number of card swaps, the tool will also try to compress the ROM data in the memory. However, developers admit that the current effect is not perfect. Some games have poor compression efficiency, which will add extra burden and slow down the speed. There is still room for improvement in the future.
Not only backs up the game, but also saves the archives together
In addition to ROM dump, N64 SwapDumper also supports backup cartridge archives.
For many veteran players, this may even be more valuable than backing up the game itself. After all, many original N64 cartridges have been in service for more than 20 years, and some SRAM, EEPROM or Flash Save stored data may be at risk of being lost at any time.
mntorankusu said that he would not rule out adding an archive restore function in the future, but at present, his personal needs are mainly to safely back up archives to SD cards, so development has not been prioritized for the time being.
Developer admits there are hardware risks
Although the developer stated that he had repeatedly tested it many times and did not cause damage to the console or the cartridge, he still reminded players that this approach has certain risks.
In particular, some players will remove the region-restricted cartridge guide inside the N64 console to facilitate the direct insertion of cartridges from different regions. If this plastic positioning structure is missing, it may be easier to insert the card incorrectly during frequent card replacement.
Once the cassette contacts are misaligned, the most serious consequences may be pin short circuit, incorrect connection, or even hardware damage. In addition, if you use a flash card or game cartridge with a bare PCB, the risk of insertion offset will also increase.
Therefore, the developer emphasizes that all use must be at your own risk.
“Finally, I don’t have to look for pirated copies to back up the games I bought.”
In addition to the technical aspect, mntorankusu also mentioned that he thinks this tool has another level of significance.
He said that the flash card community has had a somewhat embarrassing problem for a long time: many players actually own genuine cartridges, but because there is no convenient dump tool (our solution is to use N64 Dump), they can only download ROM from the Internet and put it into the flash card to play.
Nowadays, backup can be completed with only a flash card, which at least gives players the opportunity to create legal backup files by themselves.
He even said bluntly: “Now you don’t need to piracy in order to put the games you own into a flash card and play them.”
Although the entire process seems much more troublesome than a traditional dumper, and has even been dubbed by many players as the most ridiculous N64 backup method currently, for the collection and preservation community, this new solution that does not require additional hardware still has considerable research and experimental value.