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Question: RDR-GX257 issues

From the first, sometimes I get an error that disk can not be recorded on, after the recorder has recorded for several hours. I cant find any files on the disk even looking on there with another recorder or computer. I get a 000.00 reading on contents, which means I lose several hours of recording time. I use the recorder for security camera. Is there a healing-mode on this recorder as Ive had on other recorders. Lindsay