Hi,
I've bought a cheap USB 4GB SD Card MP3 Player from eBay for my daughter. I copied some audiobooks and other stuff for her, organized in different folders and tagged by track numbers. The player always starts with folder no. 5 no matter how I re-sort or re-name the folders. I'd like to learn a bit more about MP3-player firmware in general and about this model in special:
It has two stacked pcbs inside, each labeled
DHZ-311 Shoujixing. I took off the upper board with the display and the display driver
.

Unfortunately the carrying posts are welded to the lower board so I can't see the MP3 chip. I would break it apart but it's my daughter's.
Is this kind of player known to the forum community and are there firmware alternatives for it?
Thanks for any hint.
Best regards,
mPeggy