Dual layer dvd rw

Hi, what is the difference between a dual layer drive and not dual layer
drive? Thanks....

Two layers.

Dual layer drives have double the capacity
"Brian J" <> wrote in message
news:0hDod.5499$VG.3001@trndny07...
> Hi, what is the difference between a dual layer drive and not dual layer
> drive? Thanks....
>

The dual layer drive writes on two sides of a cd. You have to purchase
these cds as you can not write on the cds that we are currently using.

My experience has been that so far the DL is not totally reliable when
writing DVD.
The Phillips that comes in the Dell computers are a nightmare.

Unless you are going to write with DL cds and do extensive dvd
authoring I would get a writer that is more reliable and wait till
they perfect these more.


>Two layers.
>
>Dual layer drives have double the capacity
>"Brian J" <> wrote in message
>news:0hDod.5499$VG.3001@trndny07...
>> Hi, what is the difference between a dual layer drive and not dual layer
>> drive? Thanks....
>>
>

Dual layer does not write on both sides of the disc. Dual layer is just
that, dual-layer on one side. There are two data layers and the laser is
basically refocused depending on which layer needs to be written or read.

"tellme" <> wrote in message
news:...
> The dual layer drive writes on two sides of a cd. You have to purchase
> these cds as you can not write on the cds that we are currently using.
>
> My experience has been that so far the DL is not totally reliable when
> writing DVD.
> The Phillips that comes in the Dell computers are a nightmare.
>
> Unless you are going to write with DL cds and do extensive dvd
> authoring I would get a writer that is more reliable and wait till
> they perfect these more.
>
>
>>Two layers.
>>
>>Dual layer drives have double the capacity
>>"Brian J" <> wrote in message
>>news:0hDod.5499$VG.3001@trndny07...
>>> Hi, what is the difference between a dual layer drive and not dual layer
>>> drive? Thanks....
>>>
>>
>

"Tweek" <shawnwinget@nospam_hotmail.com> wrote in message
news:1xPod.2633$6m2.1148@trnddc04...
> Dual layer does not write on both sides of the disc. Dual layer is just
> that, dual-layer on one side. There are two data layers and the laser is
> basically refocused depending on which layer needs to be written or read.

Also, dual-layer discs are very expensive right now, around $10 per disc.
They're really not worth the cost at this point.

Tom Scales wrote:
> Two layers.

Which means twice as much data per DVD. The single layer DVDs hold 4.7
GB, the dual layer ones 9.<something>

Eddie Aftandilian wrote:

> "Tweek" <shawnwinget@nospam_hotmail.com> wrote in message
> news:1xPod.2633$6m2.1148@trnddc04...
>
>>Dual layer does not write on both sides of the disc. Dual layer is just
>>that, dual-layer on one side. There are two data layers and the laser is
>>basically refocused depending on which layer needs to be written or read.
>
> Also, dual-layer discs are very expensive right now, around $10 per disc.
> They're really not worth the cost at this point.

True, but like all previous media, the price will come down shortly.

Yes, I said that before you edited it out. Why did you?
"Sparky" <> wrote in message
news:SoXod.21$...
> Tom Scales wrote:
>> Two layers.
>
> Which means twice as much data per DVD. The single layer DVDs hold 4.7 GB,
> the dual layer ones 9.<something>

The organic entity known as Tom Scales communicated the following:

> Yes, I said that before you edited it out. Why did you?

Without a doubt because of your top posting. Top posting is only readible
if one reads the whole thread and thus it is only a waste of space to quote
the text from the previous posts.

--
Hans

The organic entity known as Sparky communicated the following:

> Tom Scales wrote:
>> Two layers.
>
> Which means twice as much data per DVD. The single layer DVDs hold 4.7
> GB, the dual layer ones 9.<something>

I think the correct number is something like 8.5 GB.

I haven't gotten deeper into the technology, so I am unsure if that is a
technology maximum or just the maximum of the currently available drives.

--
Hans