Nikon DS-2MBW Instruction Manual page 130

.USB.
VI Basic Operations
5 Using the DS-L1 when Connected to a PC by a USB Cable
How to discriminate between the media drive and the CCD image drive
Right-click any removable disk icon on the My Computer screen to display its [Properties] dialog
box. This dialog box helps you identify the drive assigned to that removable disk.
In the case of the CCD image drive, for example, it can be identified based on the volume label,
"NIKONIMG," and its capacity, 16.0 MB, as shown below.
NOTE: Note that because this drive is write protected, its volume label cannot be
altered.
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