NOTE: You, the customer, are solely responsible for data security. WinBook strongly recommends that you perform a backup of all personal data contained on your system prior to performing this procedure. Warning: WinBook will NOT be held responsible for any data loss incurred during this process.

The WinBook J1 computer can experience low audio output from the internal speakers during DVD Playback. WinBook MPS has identified the problem as an internal issue with the executable file that launches Cyberlink PowerDVD version 3.0. This is the licensed software that is issued with the J1 computer in the DVD configuration.

The issue itself lies within the PowerDVD.exe file. There is, within the code, a volume limiter that is enabled, and this prevents normal audio output from the internal speakers on the J1.

WinBook MPS and Cyberlink have developed a registry key that will correct this issue and allow for a higher volume output through the internal speakers.

There is a registry fix obtainable at the following URL: http://www.winbookcorp.com/ftp/j1_dvd.reg (the filename is j1_dvd.reg)

There are two options available for the file either, "Open this file from its current location", or "Save this file to disk"

1. Choose the default action which is "Save this file to disk".
2. Click "OK"
3. Save the file to your desktop, the file name is "j1_dvd.reg".
4. Once this file is on your desktop, you can double-click it to enter the key into the registry.
5. You should see a dialog box asking; "Are you sure you want to add the information in C:\Windows\Desktop\j1_dvd.reg to the registry?"
6. Click "Yes", and on the next dialog box that says; "Information in C:\Windows\Desktop\j1_dvd.reg has been successfully entered into the registry", click the "OK" button.

This will place the information in the j1_dvd.reg key into the registry. This registry fix adds a dword value to this registry key:

HKEY_LOCAL_MACHINE\Software\Cyberlink\PowerDVD

The value that is added is "master volume control"=dword:000000xx

This value sets a higher base volume for the PowerDVD software.

Editing the registry can have unexpected results, so it is highly recommended that you back up the registry before making this change.

Adjusting the dword value to a higher or lower setting can increase or decrease the base volume for DVD playback. You can adjust the dword value by opening the registry editor, and finding the HKEY_LOCAL_MACHINE\Software\Cyberlink\PowerDVD key. Double-click the "master volume control" entry and enter a numerical value in the highlighted box.

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Disclaimer: This information is being provided to you as a service from the Technical Support Department of WinBook Computers. It is intended to assist you in the resolution of your technical problems or questions. If you feel uncomfortable implementing any of the information or suggestions contained herein then you should e-mail the WinBook Technical Support Department. WinBook will not be held responsible for any loss of information, data or programming as a result of the use of this TechNote.