Sony PCG-Z505LEK User Guide

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Connecting an i.LINK® device
49
Hard Drive Partition
In order to improve the performance of your computer’s DVgate™ Motion 
software, the hard disk drive on your computer has been formatted with two 
partitions, C and D.
*
 DVgate Motion saves files to the D partition. This prevents 
large video captures from consuming the available space on your C partition. To 
maintain optimum performance of DVgate Motion, you should defragment your 
D partition regularly. See the DVgate Motion online help for more information.