Hi, I am from Brazil (sorry, my english sucks) I have a "Powerpack mfca-280" that uses the SPMP3050A.BIN firmware. the firmware that came from my PMP can run .nes .gb .gbc and .bin files. I downloaded another firmware from the powerpack's site, that's is totally different. Then I hex edit this firmware, and I found strings inside file called ROM_EXEC support for files .nes .gb .gbc .sfc .smc (SNES)!!!!!!!!! but, i need help to upload this firmware to my PMP, if it is possible. link:
Powerpack filename: MF-CA-280.rar Thanx.