Converting a cartridge ROM into a disc image doesn't improve graphics or performance; it just wraps the same data in a different "container". How to do it (If you must)
If an emulator expects a .n64 or .v64 file, but you have a .z64 file: z64 to iso
If you are deep into N64 emulation, you may encounter these formats: Converting a cartridge ROM into a disc image
An ISO image is a digital replica of an entire optical disc, such as a CD, DVD, or Blu-ray. It packages all the files and the file system structure into a single uncompressed file, making it a standard for distributing software and large datasets. Why Convert Z64 to ISO? Why Convert Z64 to ISO
The term .iso is derived from the ISO 9660 file system used for optical discs (CDs, DVDs). In the context of gaming, an ISO is a disc image. It is a sector-by-sector copy of the data on a disc, stored in a single file.