18 Setting Up and Using Your ComputerHelpful Tips• Use Microsoft® Windows® Explorer to drag and drop files to a CD-R or CD-RW only after you startSonic DigitalMedia and open a DigitalMedia project.• Use CD-Rs to burn music CDs that you want to play in regular stereos. CD-RWs do not play in mosthome or car stereos.• You cannot create audio DVDs with Sonic DigitalMedia.• Music MP3 files can be played only on MP3 players or on computers that have MP3 software installed.• Commercially available DVD players used in home theater systems may not support all available DVDformats. For a list of formats supported by your DVD player refer to the documentation provided withyour DVD player or contact the manufacturer.• Do not burn a blank CD-R or CD-RW to its maximum capacity; for example, do not copy a 650-MBfile to a blank 650-MB CD. The CD-RW drive needs 1-2 MB of the blank space to finalize therecording.• Use a blank CD-RW to practice CD recording until you are familiar with CD recording techniques. Ifyou make a mistake, you can erase the data on the CD-RW and try again. You can also use blankCD-RWs to test music file projects before you record the project permanently to a blank CD-R.See the Sonic website at www.sonic.com for additional information.Hyper-ThreadingHyper-Threading is an Intel® technology that can enhance overall computer performance by allowing onephysical processor to function as two logical processors, capable of performing certain tasks simultaneously.It is recommended that you use the Microsoft® Windows® XP Service Pack 1 (SP1) or later operatingsystem because Windows XP is optimized to take advantage of Hyper-Threading technology. While manyprograms can benefit from Hyper-Threading, some programs have not been optimized for Hyper-Threadingand may require an update from the software manufacturer. Contact the software manufacturer for updatesand information about using Hyper-Threading with your software.To determine if your computer is using Hyper-Threading technology:1 Click the Start button, right-click My Computer, and then click Properties.2 Click Hardware and click Device Manager.3 In the Device Manager window, click the plus (+) sign next to Processors. If Hyper-Threading isenabled, the processor is listed twice.You can enable or disable Hyper-Threading through system setup. For more information on accessing systemsetup, see page 83. For more information on Hyper-Threading, search the Knowledge Base on the DellSupport website at support.dell.com.