I have 'Disc Loss' on screen
The disc loss error describes an issue with the internal hard drive of your DVR system.
This may be disconnected or may have encountered an issue.
Check your connections by disconnecting power to the DVR and open the DVR box up.
The hard drive is connected to the main board check the two cables joining them is secure.
If this if still secure, the internal hard drive may require replacing.
A replacement SATA hard drive can be purchased from any good computer store.
Please email firstname.lastname@example.org with your proof of purchase and a brief explanation of the issue you've encountered and tests performed if your product is still within its 12-month warranty.