When [Neutrino-1] saw DFRobot’s DFPlayer module, he decided he wanted to make his own retro MP3 ... an SD card with some MP3s. There’s even a small Python GUI to help you get your new player ...

[Gregg Eshelman], wrote to us to say that in 2004 he bought an MP3 player ... will be experts on SD card standards who can shed some light on this mystery. Why can a player designed for the ...