how does DVRs work?

Discussion in 'Science, Technology & Car Chat' started by JeffreyChui, Jun 13, 2006.

  1. JeffreyChui

    JeffreyChui Active Member

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    Since DVRs are getting less expensive I would want to get one, but not sure how it actually works. I know it burns the TV shows onto DVD, but i'm confused about the writing speed. Since u record shows in real time, how is the writing speed applicable? For example, I record simpsons (30 mins), does the DVR adjust the writing speed automatically?
     
  2. afan

    afan Member

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    I think the speed of the recording is set to auto for the DVR. (assuming your buying a cheap version) How the automatic speed is determined is usually two things:

    1. Depends on the dvd drive in your DVR (usually tells you supported speeds on the box description before you buy).

    2. Also the speeds of your DVD+-RW/DVD+-R discs that it supports.

    Hope that helps.
     
  3. AVANT

    AVANT Well-Known Member

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    You talking about Recordable DVDs, DVD Recorder, or DVR (Tivo type things).

    Because DVRs are actually Hard Drive based, not DVD...
     
  4. JeffreyChui

    JeffreyChui Active Member

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    hmm.... I guess I'm thinking of DVD Recorder using blank DVD discs in use with TVs.
     
  5. goo wak jai

    goo wak jai Well-Known Member

    well it is kinda like recording on a video. But after recording on my dvd recorder you have to finalise it.
     
  6. dim8sum

    dim8sum ♫♪♫♪♫♪♫♪♫♪♫♪....

    ah howstuffworks.com its a wonderful website
     
  7. Knoctur_nal

    Knoctur_nal |Force 10 from Navarone|

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    damn straight!
     
  8. hot wings

    hot wings Well-Known Member

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    wat i dont get is if record a program then can u record another porgram behind that? cos if ur using a dvd-r then surly once u record one program and take the disk out u can rewrite anything to the disk again right?
     
  9. goo wak jai

    goo wak jai Well-Known Member

    Well on the one i got, u can record as much as u want(well if there are space for u to) but just don't finalise it if it's a dvdr. Once u finalise the dvdr then u can't rewrite it.