J&M Corporation JMDM-IPBT-GL18 Installation & Operation Instructions - page 5
General Tips for Use with SD Card
For the 2001-2005 GL-1800, it usually works best to limit the # of folders to 5, plus the root, with no more than 45 files/tracks per
folder, using a 4Gb (max) SD card.
2006-2010 GL-1800s will support up to 8 folders, plus the root and up to 99 files/tracks per folder, using an SD card up to 8Gb in
size.
The included card reader/writer is not a thumb drive and is used only to load music into your SD card.
The suggested file format for music is MP3, while WMA can be used if the files/tracks are not protected.
If you are using iTunes, the music files will need to be converted to MP3 before they are loaded into the SD card or thumb drive.
When both an SD card and USB Flash Drive are inserted into the JMDM-GL18B, the SD card will be recognized first.
How to add MP3 or WMA files/folders to an SD Card or USB Thumb-Drive.
1. Connect your SD card to the computer by inserting the SD card into the supplied SD card reader/writer or simply plug your USB
Thumb Drive into the computer.
2. Click on Start and then My Computer.
3. Now find the SD card or USB thumb-drive (designated as Disk (I): in this example)