From Emulation General Wiki
Save converters can change a save from one format to another. Emulators can sometimes use a different file format.
PlayStation 1<->PlayStation Portable
- PS1<->PSP Save Converter - Converts PS1 (.mcr) to PSP's PS1 (.vmp) save format and vice versa.
Game Boy Advance
- gbaconv Converts GBA battery saves between VBA-M and the VBA-Next core of RetroArch. Note that most games will work without conversion, but some may break entirely without converting (e.g. Ninja Five-O).
- pj64tosrm converts eep, mpk, fla and sra files to libretro-mupen64plus srm files. Just drag the files onto the executable and an srm file should be generated on the same folder the input files came from. You can also drop a libretro-mupen64plus srm file on the tool to extract the original files. DexDrive and Adaptoid64 saves are not supported yet.
- It is possible to use 512-byte eep files with libretro-mupen64+ simply by renaming the file to srm, but reversing the operation requires pj64tosrm. Bigger eep files require pj64tosrm due to a mistake during the implementation of srm support in the early days of the mupen64+ port to the libretro API.