Connection to a computer

• Your Walkman is not attached to the USB cradle (supplied) properly.

• Attach your Walkman to the USB cradle properly and firmly. Charging will start (the OPR lamp lights up in red) even if the connection was not made properly, but there is a possibility that the computer has not recognized the Walkman. In such a case, remove the Walkman from the USB cradle and then attach to the USB cradle again.

• The remaining battery power is low or insufficient.

• Recharge the battery. When you use your Walkman for the first time, or if you have not used the Walkman for a long time, it may take a few minutes to be recognized by the computer, even if charging has already started (the OPR lamp lights up in red). Check that the computer recognizes the Walkman after you have connected it to the computer for about 5 minutes.

• If you transfer files by drag-and-drop on a computer that does not have Windows Media Player 11 or later installed, only a limited amount of files may be transferable by drag-and-drop.

• Install Windows Media Player 11 or later from the Windows Media Player download site, then transfer files by drag-and-drop again. Before installing Windows Media Player 11 or later on your computer, make sure to check whether your software or service corresponds to Windows Media Player 11 or later. For details on usage, or support on Windows Media Player, visit the following web site:
  http://support.microsoft.com/

• Your Walkman is not attached to the USB cradle (supplied) properly.

• Remove the USB cradle, and then reattach it.

• There is not enough free space in the built-in flash memory.

• Transfer any unnecessary data back to the computer to increase free space.

• For details on the maximum recordable number of files, see [Details].

• Songs with a limited playing period or play count may not be transferred due to restrictions set by copyright holders. For details on the settings of individual audio file, contact the distributor.

• You may be attempting to transfer files that are not in a playable format.

• Transfer files in a playable format, see [Details].