I configured the CD writer and DVD/CD rom to be shared in workgroup on my
desktop running Windows XP Pro. All the users in workgroup can see the
drives but not allow to access. I have given the write access to everyone
Can someone advise the possible causes and fixes.

Thanks,

Ray

In article <(E-Mail Removed)>, "Ray"
<(E-Mail Removed)> wrote:
>I configured the CD writer and DVD/CD rom to be shared in workgroup on my
>desktop running Windows XP Pro. All the users in workgroup can see the
>drives but not allow to access. I have given the write access to everyone
>Can someone advise the possible causes and fixes.
>
>Thanks,
>
>Ray

When you share a CD or DVD writer over a network, it's shared as a
read-only device, even if you've specified write access. It isn't
possible to write to it from another computer. An Ethernet network
connection can't supply data fast enough to support CD or DVD burning.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

They don't need write access, they need read access.

----
Nathan McNulty


Ray wrote:
> I configured the CD writer and DVD/CD rom to be shared in workgroup on my
> desktop running Windows XP Pro. All the users in workgroup can see the
> drives but not allow to access. I have given the write access to everyone
> Can someone advise the possible causes and fixes.
>
> Thanks,
>
> Ray
>
>

Hi Ray,

Try the edit on line 264 (right hand side)
http://www.kellys-korner-xp.com/xp_tweaks.htm

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
>I configured the CD writer and DVD/CD rom to be shared in workgroup on my
> desktop running Windows XP Pro. All the users in workgroup can see the
> drives but not allow to access. I have given the write access to everyone
> Can someone advise the possible causes and fixes.
>
> Thanks,
>
> Ray
>
>

Kelly,

Should I apply it to the pc with CD-ROM drive or the pc to access the CD-ROM
drive. Thanks for your further advice.

Ray

"Kelly" <(E-Mail Removed)> wrote in message
news:%(E-Mail Removed)...
> Hi Ray,
>
> Try the edit on line 264 (right hand side)
> http://www.kellys-korner-xp.com/xp_tweaks.htm
>
> --
> All the Best,
> Kelly
>
> Microsoft-MVP Windows® XP
> 2004 Windows MVP "Winny" Award
>
> Troubleshooting Windows XP
> http://www.kellys-korner-xp.com
> http://www.kellys-korner-xp.com/xp_tweaks.htm
>
> Taskbar Repair Tool Plus!
> http://www.kellys-korner-xp.com/taskbarplus!.htm
>
>
> "Ray" <(E-Mail Removed)> wrote in message
> news:(E-Mail Removed)...
> >I configured the CD writer and DVD/CD rom to be shared in workgroup on my
> > desktop running Windows XP Pro. All the users in workgroup can see the
> > drives but not allow to access. I have given the write access to
everyone
> > Can someone advise the possible causes and fixes.
> >
> > Thanks,
> >
> > Ray
> >
> >
>
>

Well, you're correct about not writing to the CD writer, but wrong about not
being able to supply data fast enough through a network - even the fastest
IDE subsystem cannot perform as fast as even a 10mb network.

--
Mike Matheny

"Steve Winograd [MVP]" <(E-Mail Removed)> wrote in message
news(E-Mail Removed)...
> In article <(E-Mail Removed)>, "Ray"
> <(E-Mail Removed)> wrote:
> >I configured the CD writer and DVD/CD rom to be shared in workgroup on my
> >desktop running Windows XP Pro. All the users in workgroup can see the
> >drives but not allow to access. I have given the write access to
everyone
> >Can someone advise the possible causes and fixes.
> >
> >Thanks,
> >
> >Ray
>
> When you share a CD or DVD writer over a network, it's shared as a
> read-only device, even if you've specified write access. It isn't
> possible to write to it from another computer. An Ethernet network
> connection can't supply data fast enough to support CD or DVD burning.
> --
> Best Wishes,
> Steve Winograd, MS-MVP (Windows Networking)
>
> Please post any reply as a follow-up message in the news group
> for everyone to see. I'm sorry, but I don't answer questions
> addressed directly to me in E-mail or news groups.
>
> Microsoft Most Valuable Professional Program
> http://mvp.support.microsoft.com

In article <un0X$(E-Mail Removed)>, "Mike Matheny"
<mikematheny@swbelldotnet> wrote:
>>> When you share a CD or DVD writer over a network, it's shared as a
>>> read-only device, even if you've specified write access. It isn't
>>> possible to write to it from another computer. An Ethernet network
>>> connection can't supply data fast enough to support CD or DVD burning.
>
>Well, you're correct about not writing to the CD writer, but wrong about not
>being able to supply data fast enough through a network - even the fastest
>IDE subsystem cannot perform as fast as even a 10mb network.

Are you sure about that, Mike? Here are the rated transfer speeds of
some systems:

Ultra ATA/33 IDE drive interface:
33 megabytes/second

Ultra ATA/66 IDE drive interface
66 megabytes/second

Ultra ATA/100 IDE drive interface
100 megabytes/second

10BaseT Ethernet:
10 megabits/second = 1.25 megabytes/second

100BaseTx (Fast) Ethernet
100 megabits/second = 12.5 megabytes/second

As I interpret those numbers, the slowest IDE disk is almost three
times faster than Fast Ethernet. Is that right?

I've measured actual speeds for disk copies over a Fast Ethernet
network, and the result is typically 50-70 megabits/second. That
involves reading one computer's disk and writing the other computer's
disk, and it's much faster than a 10 megabit/second network.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com

Hi Ray,

The former.

--
All the Best,
Kelly

Microsoft-MVP Windows® XP
2004 Windows MVP "Winny" Award

Troubleshooting Windows XP
http://www.kellys-korner-xp.com
http://www.kellys-korner-xp.com/xp_tweaks.htm

Taskbar Repair Tool Plus!
http://www.kellys-korner-xp.com/taskbarplus!.htm


"Ray" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Kelly,
>
> Should I apply it to the pc with CD-ROM drive or the pc to access the
> CD-ROM
> drive. Thanks for your further advice.
>
> Ray
>
> "Kelly" <(E-Mail Removed)> wrote in message
> news:%(E-Mail Removed)...
>> Hi Ray,
>>
>> Try the edit on line 264 (right hand side)
>> http://www.kellys-korner-xp.com/xp_tweaks.htm
>>
>> --
>> All the Best,
>> Kelly
>>
>> Microsoft-MVP Windows® XP
>> 2004 Windows MVP "Winny" Award
>>
>> Troubleshooting Windows XP
>> http://www.kellys-korner-xp.com
>> http://www.kellys-korner-xp.com/xp_tweaks.htm
>>
>> Taskbar Repair Tool Plus!
>> http://www.kellys-korner-xp.com/taskbarplus!.htm
>>
>>
>> "Ray" <(E-Mail Removed)> wrote in message
>> news:(E-Mail Removed)...
>> >I configured the CD writer and DVD/CD rom to be shared in workgroup on
>> >my
>> > desktop running Windows XP Pro. All the users in workgroup can see the
>> > drives but not allow to access. I have given the write access to
> everyone
>> > Can someone advise the possible causes and fixes.
>> >
>> > Thanks,
>> >
>> > Ray
>> >
>> >
>>
>>
>
>

It is important to note that most CD and DVD Writers can operate in DMA
Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
only way you are going to be able to burn a DVD at anthing higher than
8x over a network is if the network is capable of transfering that
amount of data which would require a Gigabit Network.

Also important to note is that most of these hardware components only
operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
you really only get around 25 MB/s. Burning 16x DVD's requires about 22
MB/s.

One way to make sure that your DVD's and CD's are properly burned over
the network would be to limit the speed of writing to handle the amount
of data that can be transfered (and allow room for error as well). Here
are my suggestions for writing to a CD over a network:

For 10 MBit Networks:
CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
DVD Burning will not work on a 10 MBit network

For 100 MBit Networks:
CD Burn speed of 52x (Full speed should be supported)
DVD Burn speed of 8x (May lower to 4x on high traffic networks)

----
Nathan McNulty


Steve Winograd [MVP] wrote:
> In article <un0X$(E-Mail Removed)>, "Mike Matheny"
> <mikematheny@swbelldotnet> wrote:
>
>>>>When you share a CD or DVD writer over a network, it's shared as a
>>>>read-only device, even if you've specified write access. It isn't
>>>>possible to write to it from another computer. An Ethernet network
>>>>connection can't supply data fast enough to support CD or DVD burning.
>>
>>Well, you're correct about not writing to the CD writer, but wrong about not
>>being able to supply data fast enough through a network - even the fastest
>>IDE subsystem cannot perform as fast as even a 10mb network.
>
>
> Are you sure about that, Mike? Here are the rated transfer speeds of
> some systems:
>
> Ultra ATA/33 IDE drive interface:
> 33 megabytes/second
>
> Ultra ATA/66 IDE drive interface
> 66 megabytes/second
>
> Ultra ATA/100 IDE drive interface
> 100 megabytes/second
>
> 10BaseT Ethernet:
> 10 megabits/second = 1.25 megabytes/second
>
> 100BaseTx (Fast) Ethernet
> 100 megabits/second = 12.5 megabytes/second
>
> As I interpret those numbers, the slowest IDE disk is almost three
> times faster than Fast Ethernet. Is that right?
>
> I've measured actual speeds for disk copies over a Fast Ethernet
> network, and the result is typically 50-70 megabits/second. That
> involves reading one computer's disk and writing the other computer's
> disk, and it's much faster than a 10 megabit/second network.

In article <(E-Mail Removed)>, Nathan McNulty
<(E-Mail Removed)> wrote:
>It is important to note that most CD and DVD Writers can operate in DMA
>Mode 2. This is 33 MegaBytes Per Second for the max throughput. The
>only way you are going to be able to burn a DVD at anthing higher than
>8x over a network is if the network is capable of transfering that
>amount of data which would require a Gigabit Network.
>
>Also important to note is that most of these hardware components only
>operate at about 80% efficiency. This means with DMA Mode 2 (33 MB/s),
>you really only get around 25 MB/s. Burning 16x DVD's requires about 22
>MB/s.
>
>One way to make sure that your DVD's and CD's are properly burned over
>the network would be to limit the speed of writing to handle the amount
>of data that can be transfered (and allow room for error as well). Here
>are my suggestions for writing to a CD over a network:
>
>For 10 MBit Networks:
>CD Burn speed of 4x (Though 8x may be possible, I wouldn't recommend it)
>DVD Burning will not work on a 10 MBit network
>
>For 100 MBit Networks:
>CD Burn speed of 52x (Full speed should be supported)
>DVD Burn speed of 8x (May lower to 4x on high traffic networks)

I hadn't thought of limiting the writing speed. Thanks for pointing
that out.
--
Best Wishes,
Steve Winograd, MS-MVP (Windows Networking)

Please post any reply as a follow-up message in the news group
for everyone to see. I'm sorry, but I don't answer questions
addressed directly to me in E-mail or news groups.

Microsoft Most Valuable Professional Program
http://mvp.support.microsoft.com