Welcome to WonderFox DVD Ripper Help
  About Registration
  How to rip first video from DVD
  System Requirement
  Support Formats
  Installation & Uninstallation
  Reasons for Failed Process
  Recommond Products
  Back to WonderFox DVD Ripper >
Reasons for Failed Process

If you fail to complete your conversion, pay attention to the following tips:
1. Use registered version. Unregistered version can just convert five minutes of the DVD content.
2. Use latest version. The old version may have some bugs which would cause the software doesn't work.
3. Log in PC as the "Administrator" ID or "Run as administrator" when using other IDs.
4. Install it on non-system partition, like D:\, E:\ ...,
5. Change output folder to non-system partition.
6. Check the DVD content is available or not.