Defrag your boot volume with bootable DVD in few easy steps
The boot volume of your Mac system is the volume, from which the system starts up. This volume contains all the Mac OS X installed files and other supported files needed to run the system. With usage over months, the boot volume becomes fragmented by storing various .plist files in the location “Macintosh HD->Library->Preferences folders”, log entries and other page-files. These files make the booting process slower and the need arises to defrag boot drive.
However, the problem is that while booting from the boot volume, the operating system files are in an active state. The active files can not be defragged and any forceful defragment operation may result in lost/inaccessibility of data following corruption. Hence, Stellar Drive Defrag utility provides an innovative option to create a bootable DVD, from which you can boot your system and defrag any Mac volume, including the boot volume.
Creating the Bootable DVD using Stellar Drive Defrag
The 'Create Bootable DVD' window will be displayed as in the below screen shot. Click 'Continue'.

Defragmenting boot volume with the Bootable DVD:
Click the start button on the tool bar. A warning message will be displayed to take back-up of your data before proceeding. Click the 'Start' button to start the defragmentation process.
Stellar Drive Defrag is a highly reliable boot volume defragmenter with completely read-only perperties. The boot DVD created by the software can be used to boot the system, in case of system crash or any other instance of inaccessibility.
Testimonials
I love working on my Mac and had never expected it would suddenly behave erratic. Any file/folder I clicked, it would take minutes to open. Not only large files, but...
Scott Strauss Jr.
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Stellar Drive Defrag is a Disk Defragmenter & Mac optimization tool. Drive Defrag helps to defragment Mac hard drive and faster access to large files.... 
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