Samsung DVD-R175 Manuel D'utilisation page 76

PROBLEMS AND SOLUTIONS (DISPLAY ERROR MESSAGE)
PROBLEM
Error is detected on the disc.
System error is found.
Please try it again after turning off the power.
The DV device is not connected.
If you are unable to solve the problem after reading the above instructions, note:
• The model and serial number on the rear of your DVD Recorder
• The warranty information
• A clear description of the problem
Then contact SAMSUNG customer service at 1-800-SAMSUNG.
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EXPLANATION/SOLUTION
• You can't use the disc because it contains errors from previous recordings.
Use the disc after formatting.
• When operating, errors happen. Turn off the device.
(To turn off, press and hold the power button on the front of the device for 10
seconds.)
After turning off, press the Open button and remove the disc from the device.
• Make sure the DV device is connected properly to the DV connection Jack.
If it is connected properly, turn it off and on once again.