This player features a shuffle mode, basic track navigation, volume control, FAT32 support, fragmented file support, an unlimited number of files on the root directory, and high quality playback. Files at 256Kbps can be played without a hitch. Variable bitrate files are supported with peaks up to 320Kbps.
WAV files are also supported, but they have to be less than CD quality unless you put a faster oscillator in the pic. It works on my test device, but running the pic at over ~8MHz with only a 3.3 volt supply can be problematic. So I hear. I’m still working on the WAV stuff, so if you have some funny results playing WAV files, let me know.

To load the memory card, you will need some sort of card reader/writer. Many computers have them built in. External USB models are available for ~$10. Make sure to format the card FAT32, not FAT16.
For normal playback, load a card up with MP3 files (make sure they all have a ".mp3” file extension) and insert it into the player. Turn on the power and it should immediately start playing the first track. Tracks are played in the order that they are put onto the memory card.
To get into shuffle mode, hold the "next track” button down while you power on the device. It will remain in shufle mode until the next power cycle. Once all the songs have played once (and only once) it will go to sleep until the next power cycle.

 

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