How to do when get error message "MPEG2Dec: Error during decoder initialisation"?

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Question: How to do when get error message "MPEG2Dec: Error during decoder initialisation"?
What can I do with the error?
Answers:

It may because that your DVD disc is from a region limited by your DVD-ROM. You may try to install a DVD region free software to make your DVD-ROM can read the DVD disc.

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