Sony PCV-RZ14G Online Help Center (VAIO User Guide) User Manual page 36

Defragmenting your hard disk drive
If you encounter frame dropping while recording digital video onto your hard disk drive, defragmentation may be
necessary.
1. Deactivate your screen saver and close other open applications, if applicable.
2.
Click Start in the Windows taskbar and select All Programs.
3.
Point to Accessories, point to System Tools, and then select Disk Defragmenter.
The Disk Defragment dialog box appears.
4.
Select Action from the menu bar and click Analyze.
It may take a long time to complete defragmentation, depending on the data capacity and current utilization of your
computer's hard disk drive(s).
Page 36