HDD format on old AVTECH DVR?

[Squiffy 0]

Up until recently the DVR's been fine, but it has recently been getting HDD errors with subsequent reboots.

 

Have tried replacing the hard drive with an old but known good drive and experiencing "drive error" during initialising.

Do these DVRs require the HD to be formatted in FAT32? I can't remember if the replacement is FAT32 or NTFS.

 

Note that the DVR doesn't appear to have any formatting capabilities.

[Squiffy 0]

Replying to my own question, NTFS is fine. Turns out the problem was actually a low +12v voltage rail to the HDD itself, hence the drive problems, not a problem with the drive after all.