XPost: sci.electronics.design, alt.privacy, misc.legal   
   XPost: alt.photography   
      
   On Mon, 24 Oct 2011 15:29:08 -0400, Bitrex    
   wrote:   
      
   >On 10/24/2011 3:13 PM, RichD wrote:   
   >> I was in a laundromat the other day, a typical   
   >> downtown retail space.  It has 4 fisheye ceiling   
   >> cameras.   4 cameras... a laundromat!   
   >>   
   >> I guess we've gotten used to it at this point -   
   >> Big Brother is always watching.   
   >>   
   >> But really, they're recorders, not live watchers,   
   >> except at places like WalMart. (ever looked   
   >> at a WalMart ceiling?)  So my question is,   
   >> for a small business, how long do they keep   
   >> the DVD?  How far back do their records go?   
   >>   
   >> They have to swap a disc every 4 hours.  If   
   >> they use DVD-R, how many discs do they   
   >> typically store?   If DVD-RW, how often do   
   >> they recycle the discs?  In either case, do they   
   >> have hundreds of discs, going back months?   
   >>   
   >> Anybody have experience with security systems?   
   >>   
   >> I don;t know which board to address this question -   
   >>   
   >> --   
   >> Rich   
   >   
   >What makes you think they're recording to DVD-R? Nobody is paying   
   >someone to sit around changing DVDs all day!  If the place has gone to   
   >the effort of installing 4 cameras they're probably recording to hard   
   >disk.  Even with 4 cameras, at a relatively low bitrate it's possible to   
   >store months of footage on a single drive.  You can buy internet-enabled   
   >standalone multiple-camera hard disk recorders at reasonable prices.   
      
   Sure.  Some of this stuff is cheap.  Even X10 spams the junk.   
      
   >Some places are probably still recording to a tape loop.   
      
   Most are just dummies, though.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)