Because I have yet to find a PROGMEM tutorial that I can understand. Even Nick's page : Gammon Forum : Electronics : Microprocessors : Putting constant data into program memory (PROGMEM) left me in the dust, and his stuff is usually my first go-to.
And in this case, I have no idea what the whole string length is, and all I want to store is the actual file name (it the stuff at the end pointed at by *codebuild)
By comparison, putting stuff in eeproms & then retrieving it seems much easier.
(And I want to start using the internal eeprom for other data as well with things like Unit# and some longer sensor calibration constants - then I could just copy the entire 512 bytes to the header files on the SD cards without using any other memory resources)