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Can you play DVD in CD player?


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Old 21-02-2008, 20:17
gwynne
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Probably sounds a daft question-but can you play a DVD disc in a CD player and just get the sound-or will trying it deystroy the DVD?
Many thanks for any advice!
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Old 21-02-2008, 20:33
bobcar
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Probably sounds a daft question-but can you play a DVD disc in a CD player and just get the sound-or will trying it deystroy the DVD?
Many thanks for any advice!
No you cannot play a DVD in a CD player. You will not destroy the DVD though it's not impossible the DVD will get stuck (not physically) and you'll have fun getting it out.
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Old 21-02-2008, 21:42
sHaK
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Probably sounds a daft question
Yup
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Old 21-02-2008, 22:32
jibberjabber2b
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I agree.
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Old 21-02-2008, 22:36
mattyl149
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Apparently, you can cook toast with Blu-Ray

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Old 22-02-2008, 00:22
jibberjabber2b
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Apparently, you can cook toast with Blu-Ray

LMAOOO!
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Old 22-02-2008, 00:35
soulboy77
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Apparently, you can cook toast with Blu-Ray

Do you have to use Hi-fibre Definition bread?
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Old 22-02-2008, 01:35
stvn758
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Going by the abundance of green smileys I'd say the OP's question sounds more than daft, and perhaps is.. daft.
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Old 22-02-2008, 03:11
jibberjabber2b
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Do you have to use Hi-fibre Definition bread?
OMGGG. LMAOOO That really tickled me!

Is that a blu-RYE bread burner?
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Old 22-02-2008, 10:10
chrisjr
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Just to add a touch of sanity to this thread.....

The reason you cannot play a DVD in a CD player is down to the difference in data capacity between the two. A CD can store around 700MB and a DVD 4.7GB, give or take a bit.

Both disks use very similar construction in that the ones and zeros in the digital data are stored as pits in the reflective layer of the disk. Because both disks are the same size you can see that to store so much more data on a DVD the pits will be very much smaller than on a CD. They are also stored in a ring formation spanning out from the centre of the disk. For the same reason a DVD has the ring pattern more tightly packed than a CD.

So in a DVD the laser has to focus into a much smaller dot on the surface of the disk. Also the motor that drives the laser across the disk as it plays has to step in smaller increments than a CD.

So if you put a DVD in a CD player the laser will focus on a number of pits rather than just one. Also it cannot step across the surface of the disk correctly to track the pits accurately. So all it sees is a complete mush that makes no sense to it.

And that is without talking about the different way the sound is stored on a DVD. Even if a CD player could make sense of the data stream it most likely would not be able to extract the audio data nor turn it into a recognisable sound.

Oh and cooking toast with Blu-Ray gives a whole new twist to that famous Tomorrows World demo of this new fangled CD technology. You know the one where the presenter spread jam on the disk to prove the CD could still play it.
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Old 22-02-2008, 11:25
gwynne
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Just to add a touch of sanity to this thread.....

The reason you cannot play a DVD in a CD player is down to the difference in data capacity between the two. A CD can store around 700MB and a DVD 4.7GB, give or take a bit.

Both disks use very similar construction in that the ones and zeros in the digital data are stored as pits in the reflective layer of the disk. Because both disks are the same size you can see that to store so much more data on a DVD the pits will be very much smaller than on a CD. They are also stored in a ring formation spanning out from the centre of the disk. For the same reason a DVD has the ring pattern more tightly packed than a CD.

So in a DVD the laser has to focus into a much smaller dot on the surface of the disk. Also the motor that drives the laser across the disk as it plays has to step in smaller increments than a CD.

So if you put a DVD in a CD player the laser will focus on a number of pits rather than just one. Also it cannot step across the surface of the disk correctly to track the pits accurately. So all it sees is a complete mush that makes no sense to it.

And that is without talking about the different way the sound is stored on a DVD. Even if a CD player could make sense of the data stream it most likely would not be able to extract the audio data nor turn it into a recognisable sound.

Oh and cooking toast with Blu-Ray gives a whole new twist to that famous Tomorrows World demo of this new fangled CD technology. You know the one where the presenter spread jam on the disk to prove the CD could still play it.
Many thanks for your clear and concise reply-all is now clear!
As to those DS members who simply 'took the mick'-shame on you to what was a well meant question-its a brave man who pretends to know everything!
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Old 22-02-2008, 20:21
jibberjabber2b
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Many thanks for your clear and concise reply-all is now clear!
As to those DS members who simply 'took the mick'-shame on you to what was a well meant question-its a brave man who pretends to know everything!
Ohhh shame on us for having a bit of fun.

I feel so bad, oh Lord, I have sinned!
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Old 23-02-2008, 20:26
chrisjr
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Not everybody understands technology. Quite the reverse in my experience. To the uninitiated a DVD looks exactly the same as a CD. To most people the ONLY difference is that a DVD produces pictures and noise and a CD produces only noise.

So it is not unreasonable to wonder if a DVD playing in a CD drive would produce noise if you were unaware of the real differences between the two disks.
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Old 23-02-2008, 20:47
Jumbo_Holden
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As someone who has always understood this kind of thing. One thing I still don't get and that is why haven’t they ever used the DVD technology entirely for large amounts of audio? I know there is DVD-Audio (which never took off) but that is just the same amount music in higher quality. Which is pointless given that a human ear cannot 'sense' higher quality 'that' much greater than a CD anyway. (I mean scientifically you play anyone a music CD then something that is 100 times better quality than a CD it would only sound slightly better than the CD because our hearing isn’t sensitive enough)

But didn’t they ever think of putting the ‘same quality’ of audio on the DVD format, and thus being able to fit a lot more. If anyone can understand what I mean…
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Old 23-02-2008, 21:18
rhod
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They make more money selling music in CD sized chunks, rather than DVD sized chunks.

Also, by releasing the audio on DVD you are limiting the amount of players it can be played on, and therefore your audience.
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Old 24-02-2008, 20:28
deadline
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They make more money selling music in CD sized chunks, rather than DVD sized chunks.

Also, by releasing the audio on DVD you are limiting the amount of players it can be played on, and therefore your audience.
Yeah and most Bands/Singers struggle to write enough music to fill a CD 80mins , let alone a DVD 8x a cd i believe?

I love the original posters question though, so sweet
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Old 24-02-2008, 21:56
captainkremmen
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There are many tools (some freeware) that will allow you to put hours of music in standard PCM or AC3 audio without pictures.

But as others say, record companies dont do this because of the huge number of CD players that would not be able to play it back. Plus everyone associates DVD these days with pictures, someone somewhere would complain they bought an audio DVD (note it is not the same as DVD-AUDIO) and it wouldn't play in their CD player, or that it has no video.
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