Jay-D plays songs from the removable micro SD card that comes in the box. You cannot copy songs to it over USB. The USB port is a serial connection used for firmware and coding only, so Jay-D will never appear on your computer as a drive.
How to add your own songs
Switch Jay-D off and take the micro SD card out.
Put the card in your computer, using a card reader or an SD adapter.
Copy your files onto the card. They can go in the root of the card or in any folder, at any depth. Jay-D searches the whole card and shows everything it finds in one list.
Eject the card, put it back in Jay-D and switch it on. Your songs appear alongside the ones that came preloaded.
The file format Jay-D accepts
AAC only. The song list shows a file only if its name ends in .aac. MP3, WAV, M4A, FLAC and OGG files are skipped and will never appear, even though you can see them on the card from your computer.
Mono, 24 kHz. Jay-D plays at a fixed 24 kHz sample rate and does not convert anything. A 44.1 kHz or 48 kHz file plays at the wrong speed and pitch, and a stereo file plays back garbled. Convert to mono at 24 kHz before you copy it across.
64 kbps is the bitrate Jay-D is built around. Other bitrates still play, but the track length and the progress bar will be wrong.
Files whose name begins with a dot are ignored, so the hidden sidecar files a Mac writes to the card (names like ._Song.aac) will not clutter your list.
The card itself
The card must be formatted FAT32 (FAT16 also works). exFAT cards will not mount and Jay-D will report the card as missing. We recommend sticking with the card that came in the box. If you reformat, choose FAT32.
If Jay-D says "Not inserted!" or "Empty!"
These mean two different things. Not inserted! means Jay-D could not read the card at all: it is missing, not seated properly, damaged, or formatted as exFAT. Empty! means the card was read fine but no .aac files were found anywhere on it, so the songs have been deleted, renamed, or replaced with another format.
Mixes you record on Jay-D are saved to the card as AAC automatically, so they show up in the list just like the preloaded tracks.
Build guides and coding tutorials are on our Resources page. If your card still will not read after all this, email us at [email protected].