I believe I did answer your questions and describe the issue...
Originally Posted by broe23
The issue is that a microSD card prepared on a Windows 8.1 system is rejected by the player. When one is loaded to the push/push pull reader, the player is supposed to begin playing the audio on the card. The player attempts to read the card then shuts itself off.
I will add to the above that the player's firmware is programmed to "sense" and automatically play a microSD card in the reader. But if the SD card is not formatted properly, does not contain the acceptable folder structures or encounters an unsupported audio file type (currently only MP3) the player will terminate the the "session" from the microSD card and automatically switch back to the on-board memory and begin playing from it. If there is a similar problem detected in the data in the on-board memory, the player will shut itself off completely.