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How to make AVCLabs M4V Converter Plus work well with iTunes 12.2 and later
When you upgrade iTunes to 12.2 or later, you may meet some problems using AVCLabs M4V Converter Plus. In this case, you can refer to the following solution to opreate AVCLabs M4V Converter Plus normally.
Step 1 Set the Preferences on iTunes
Launch iTunes, choose Preferences on the top-left, there will pop up a window which allows you adjust settings. Click Advanced tab, and check the box which says Share iTunes Library XML with other applications.
Step 2 Click OK and close iTunes
Step 3 Run the program and have a try
If you still can't find iTunes files, please directly drag the files you want to convert to AVCLabs M4V Converter Plus.