Dear friend,
Thanks for your message. Sincerely sorry for the inconvenience caused to you! No worry, I'm here to help you.
I'm sorry that we do not have a German user manual for this item.
But please do not worry, it is quite easy for you to use the item. You only need to connect the item to your computer with the usb cable. Then you can put the CD into the DVD drive.
Have you tried this? Will the item function well?
Besides, I'm sorry that our item can not support the win8 system. You'd better try the item on the computer whose system is not win8.
Thanks for your understanding!
Coco:)