Can you play the backup disc on PC with software DVD player? If not either, please send us all the .IFO files on Original disc, then we will check the problem.
A recommended way is listed below:
1) Open an Explorer window, and navigate to VIDEO_TS folder of the DVD.
2) Copy all files ending with .IFO to hard disk.
3) ZIP the IFO files on hard disk to one file. Name it with a readable filename, like Stealth_UK.zip.
4) Send the zip file to fengtao(at)dvdidle.com, you need replace (at) with @.