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recovery problem
hi
I have a 2TB hard disk that used in DVR ( digital video recording )
and save 15 days of 8 cameras film .
an now have data of latest 15 days . but i need data of past 30 days .
means my needed data one time full rewrite with new data .
question 1: is it possible to recover my need data ?
question 2: if possible how to recover ?
every program that use to unrecoverable data rewrite data 6 times or in gutman algorithm 31 time rewrite data .
so i think it is possible to recover data . but maybe this is need special hardware .
anyone have information or link ?
thanks a lot
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