DVR footage delete, how to?

[john94 0]

Hey, I am changing to a 32 channel dvr and bigger memory,

 

how can I delete footage DVR that I no longer will use?

Model DS-7616NI-K2-16P

Firmware version V3.4.93, Build 170408

 

Thank You Very Much

[StefanB 0]

Format the HDD.