XPost: alt.comp.os.windows-11   
   From: daniel47@eternal-september.org   
      
   I've got a PVR who's HD is getting pretty full (90%+) with programs I'll   
   want to watch some day ... so I was thinking about coping some of the   
   'Keeper' programs onto DVD which meant buying a spool of DVD's.... but   
   then needed to check if I needed DVD-R or DVD+R disks. (It is DVD-R)   
      
   Which got me thinking ...... What's the difference between DVD-R and DVD+R??   
      
   (Note ... I'm not discussing R v RW, just the -/+.)   
      
   Back in the day (70's/80's), I used to do some Digital work where 'they'   
   talked about Positive Logic (Ones = +5V, Zeros = Zero volts) and   
   Negative Logic (Ones = Zero Volts and Zeros = +5V or even Ones = -5V and   
   Zeros = Zero Volts), so I can understand/accept that there are   
   differences ..... but with DVDs??   
      
   On a +R DVD, are the 'Ones' high points on the disk whilst on a -R DVD   
   are the 'ones' the low points on the disk?? (Or, rather than 'highs' and   
   'lows', is it a case of the orientations of the 'North Poles' and 'South   
   Poles' of the Domains??)   
   --   
   Daniel70   
      
   --- SoupGate-DOS v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)