Tips for diagnosing USB problems:When you plug a compatible drive into JB7 it will briefly display USB OK and then the display to the right of the clock will change from USB ----- to USB ‘nnnnn’ where ‘nnnnn’ is the number of MP3 tracks on the USB device. If you plug in an incompatible device the JB7 may not be able to detect the device (if it is 480Mbits only). In that case the display will not change. If you plug in an NTFS drive the display will briefly show USB NG and the display to the right of the clock will change to USB P7 (or similar error code).
You can find out if a drive is FAT16, FAT32 or NTFS by plugging it into a PC. You then need to find the drive in Windows Explorer (in My Computer) then right click on the drive and select Properties from the drop down menu. You can re-format a drive from NTFS using free software. We recommend Easus Partition Manager Home Edition or Swissknife - there are links to the download site from our questions page. Almost all USB memory sticks work with JB7 so a good way to check the USB is OK is to try it with a memory stick.
If your MP3 player has a colour display and displays photographs and/or videos then it is actually an MP4 player - it’s a different class of USB device and the JB7 cannot talk to it.
If you get an error after using export names then import names the error is usually in the album preceding the reported line. You may have inadvertently deleted a line or introduced a new one. You should wait for all the music to be compressed before using these functions. Try re-exporting the names and import without making any changes to get started. When you load tracks into JB7 from the USB the order of the tracks is the order they occur in the directory on the USB device.
If you drag and dropped many tracks at once using a computer the tracks may not be in play order. One way around this is to copy the tracks one at a time if the track ordering is important.
Sometimes deleted music on a USB memory device appears on the JB7. That’s because it has not been deleted but placed in a hidden folder called something like Recycled. I am grateful to the JB7 owner that drew it to my attention. He gave me this description of how to delete the recycled folder - "I reconnected it to my PC, clicked on 'Start', 'My computer' and the appointed drive for the Western. I then right clicked on Properties, selected 'general' tab and then 'clean up disk'. It found 4Gb of stuff for the recycle bin! I selected OK and it purged all the rubbish!"
A customer's tip "I recently got a Seagate FreeAgent 1Tb drive to work with JB7 but to do it I had to create a FAT32 primary partition using Swissknife and the partition was limited to 512G. I am not an expert and I think it is possible to create further partitions on the drive."