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The master CD or DVD disk, is the one you will provide to your CD or DVD vendor for either replication or duplication of the media. Below, you will find some tips designed to help you create a high quality master disc:

1. Always use the highest quality media that you can obtain, as all media isn’t the same. Do your research, take your time, then choose a brand that will produce a high quality disc each and every time you duplicate or replicate.

2. Avoid copying from a network source. If the source files for your disk are on a network drive, copy the files to your local disk before you burn a disc. If you can’t move the files to your local drive, try using the copy to hard drive first feature. When doing this, your burning software will create a temporary image file during the burning process. Once the burning has been completed, the temporary file will be deleted.

3. You should always avoid burning on a laptop computer that is running on low battery power. The fluctations that will occur in the available battery power may cause you to have poor results in your duplication.

4. Always make sure that you finalize your disc. If you fail to finalize, the disc won’t play back. Finalizing will also help increase the reading compability in other CD-ROM drives.

5. Never use the packet writing method to burn a master disc. This method is very common with burning drives that have re-writing capabilities. This method will produce discs that can’t be read on many CD-ROM drives.

6. Avoid any type of impact or movement of the drive during burning. Doing so can cause the laser to skip or jump tracks, which will lead to errors or a bad disc.

7. If available, use the “burn-proof” feature. This feature will allow the drive to slow down the burn speed in the event the computer can’t supply the data fast enough. Although this can increase the burn time, the quality of the disc will be much better.

8. You should avoid having multiple applications open when burning, especially those that access the Internet or a network. This can hinder your computer’s ability to supply data to the burner drive at the necessary rate.

If you follow the above tips, you should produce a master disc of excellent quality. A master disc is something you’ll want perfect, which is why you shouldn’t take any risks.

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Article Source: How to Prepare CDs Like a Pro

After loading the Windows, the DVD/CD-ROM drives work properly, but we can not see the drives in “My Computer” (System can not recognize the drives.). When try to run the drives, it shows up a notice “Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code39).” Before solving this error, check the drives connection correctly, then follow the steps below:
Delete Device Manager. Most people will firstly think of Windows “Find New Hardware” when drives missed, but it does not always work out. To fix the problem: open “My Computer”’ “Control Panel” ’“System”’“Device Manager”’ “HDC(Hard Disk Controller) ”, then click “Delete”. Follow the note to reboot computer. After rebooting, the computer will find the Primary IDE Controller and Secondary IDE Controller again and install the drivers. Restart the computer again while the installation is completed. In this, we can get back our CD/DVD-ROM Drives.

The other way is by editing the registry to return the missed CD/DVD-ROM drives (Code 39 error.). Obviously, it is too risky to edit the registry if you are not familiar with it. To fix the error from the registry, carry out the following steps:
Exit and close all applications currently running on your PC.
Step1. Click Start > Run and type in Regedit, press Enter.
Step2. Look for the following registry key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\ {4D36E965-E325-11CE-BFC1-08002BE10318}
Delete any of the following registry entries under this key directory:
LowerFilters
LowerFilters.bak
UpperFilters
UpperFilters.bak
Step3. Reboot your PC and open My Computer to check that the CD-ROM drive is visible.
Also, have a look at the Device Manager to see if the yellow exclamation mark and the error code 39 are gone.

System errors are not welcome guests that bring up unhappy computing experience. Registry Easy (www.registryeasy.com) is a professional troubleshooting system maintenance tool that can help you to solve this error and many more.

Article Source: How to fix DVD/CD-ROM drives (Code 39 error) in Windows XP or Vista