I have a Canon MP970 and have printed on a number of CDs without problem.
Recently I made copies of a data DVD then printed on the disks. When I
attempted to install the software from the copy, the installation failed,
early in the installation, stating that a file was corrupt. I have no idea
just how much of the data is corrupt.
I've tried this with three DVDs using the same software DVD and had the same
problem.
My next idea was to print the blank DVD then copy to it. That was
succesful.
Is it possible that the small metal DVD detector in the printer's disk tray
is causing the corruption?
"N" <N@onyx.com> wrote in message
news:48749ed4$0$7212$5a62ac22@per-qv1-newsreader-01.iinet.net.au...
>I have a Canon MP970 and have printed on a number of CDs without problem.
>
> Recently I made copies of a data DVD then printed on the disks. When I
> attempted to install the software from the copy, the installation failed,
> early in the installation, stating that a file was corrupt. I have no
> idea just how much of the data is corrupt.
>
> I've tried this with three DVDs using the same software DVD and had the
> same problem.
>
> My next idea was to print the blank DVD then copy to it. That was
> succesful.
>
> Is it possible that the small metal DVD detector in the printer's disk
> tray is causing the corruption?
Nope, not remotely possible. These are optical discs, so you would want to
look for physical damage to the data side of the disc. One common problem
that people have is caused by manually turning the discs in the disc tray
before or after printing, causing scratches. There's nothing in the printing
process that can effect the data in any way, it would have to be a handling
issue. The Canon printers are the gentlest on discs of the main 3 brands.
It's also true that many common brands of printable discs are pure ****e,
quality wise. So you could be looking at discs that are burned poorly to
start with, and simply become unreadable as a result. Lower your burn speed
one notch and see how it goes.
I believe it is recommended, in general, that DVDs be printed to before
burning data to them. I suspect that the printing process may damage
the data in some manner, although I honestly don;t know what damage can
be accomplished during the printing process, since DVDs have their light
sensitive layer in the middle of the DVD disk, laminated with
polycarbonate to either sides of it. Perhaps you are correct that
something in the printer can damage the DVD dyes which could corrupt
the data integrity. Interesting...
Art
If you are interested in issues surrounding e-waste,
I invite you to enter the discussion at my blog:
N wrote:
> I have a Canon MP970 and have printed on a number of CDs without problem.
>
> Recently I made copies of a data DVD then printed on the disks. When I
> attempted to install the software from the copy, the installation
> failed, early in the installation, stating that a file was corrupt. I
> have no idea just how much of the data is corrupt.
>
> I've tried this with three DVDs using the same software DVD and had the
> same problem.
>
> My next idea was to print the blank DVD then copy to it. That was
> succesful.
>
> Is it possible that the small metal DVD detector in the printer's disk
> tray is causing the corruption?
Unlike writable (and even manufactured) CDs where both the data and
reflective layer are just under the top surface, both the light
sensitive and reflective layers are in the middle of the disk,
sandwiched between the two layers of polycarbonate plastic, so they are
well protected.
This is why I was somewhat suspect of the printer damaging the data (and
reflective) layers. I should have probably been clearer in my posting
in that the recommendation by the printers manufacturers to print before
burning is probably much more significant with CDs than DVDs.
Art
If you are interested in issues surrounding e-waste,
I invite you to enter the discussion at my blog:
ato_zee@hotmail.com wrote:
>> DVDs have their light
>> sensitive layer in the middle of the DVD disk
>
> And a reflective surface, AFAIK this may be
> under the top layer.
"Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
news:eZEdk.91030$gc5.4846@pd7urf2no...
> Unlike writable (and even manufactured) CDs where both the data and
> reflective layer are just under the top surface, both the light sensitive
> and reflective layers are in the middle of the disk, sandwiched between
> the two layers of polycarbonate plastic, so they are well protected.
>
> This is why I was somewhat suspect of the printer damaging the data (and
> reflective) layers. I should have probably been clearer in my posting in
> that the recommendation by the printers manufacturers to print before
> burning is probably much more significant with CDs than DVDs.
>
> Art
Interesting. I wasn't aware of any recommendation to print before burning,
but it's certainly going to be my method from now on.
N wrote:
>
> "Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
> news:eZEdk.91030$gc5.4846@pd7urf2no...
> > Unlike writable (and even manufactured) CDs where both the data and
> > reflective layer are just under the top surface, both the light sensitive
> > and reflective layers are in the middle of the disk, sandwiched between
> > the two layers of polycarbonate plastic, so they are well protected.
> >
> > This is why I was somewhat suspect of the printer damaging the data (and
> > reflective) layers. I should have probably been clearer in my posting in
> > that the recommendation by the printers manufacturers to print before
> > burning is probably much more significant with CDs than DVDs.
> >
> > Art
>
> Interesting. I wasn't aware of any recommendation to print before burning,
> but it's certainly going to be my method from now on.
Now was I. the only problems I had heard of were from labels, the gum
of which does damage the discs.
N wrote:
> "Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
> news:eZEdk.91030$gc5.4846@pd7urf2no...
>> Unlike writable (and even manufactured) CDs where both the data and
>> reflective layer are just under the top surface, both the light
>> sensitive and reflective layers are in the middle of the disk,
>> sandwiched between the two layers of polycarbonate plastic, so they
>> are well protected.
>>
>> This is why I was somewhat suspect of the printer damaging the data
>> (and reflective) layers. I should have probably been clearer in my
>> posting in that the recommendation by the printers manufacturers to
>> print before burning is probably much more significant with CDs than
>> DVDs.
>>
>> Art
>
>
>
>
> Interesting. I wasn't aware of any recommendation to print before
> burning, but it's certainly going to be my method from now on.
>
Actually according to my Epson manual, it's the other way around. Burn
first then print.
I apologize for this error. I did indeed mix up the sequence, and I
thank you for correcting my error. The last thing I want to do is
disseminate incorrect information.
I'll strike it up to sleep deprivation, but no excuses, it was the wrong
info and I'm glad you were able to correct it.
Art
If you are interested in issues surrounding e-waste,
I invite you to enter the discussion at my blog:
Jworman wrote:
> N wrote:
>> "Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
>> news:eZEdk.91030$gc5.4846@pd7urf2no...
>>> Unlike writable (and even manufactured) CDs where both the data and
>>> reflective layer are just under the top surface, both the light
>>> sensitive and reflective layers are in the middle of the disk,
>>> sandwiched between the two layers of polycarbonate plastic, so they
>>> are well protected.
>>>
>>> This is why I was somewhat suspect of the printer damaging the data
>>> (and reflective) layers. I should have probably been clearer in my
>>> posting in that the recommendation by the printers manufacturers to
>>> print before burning is probably much more significant with CDs than
>>> DVDs.
>>>
>>> Art
>>
>>
>>
>>
>> Interesting. I wasn't aware of any recommendation to print before
>> burning, but it's certainly going to be my method from now on.
>>
> Actually according to my Epson manual, it's the other way around. Burn
> first then print.
>
"Arthur Entlich" <e-printerhelp@mvps.org> wrote in message
news:Rl%ek.5019$nD.4221@pd7urf1no...
> Your Epson manual is correct. Mea Culpa.
>
> I apologize for this error. I did indeed mix up the sequence, and I thank
> you for correcting my error. The last thing I want to do is disseminate
> incorrect information.
>
> I'll strike it up to sleep deprivation, but no excuses, it was the wrong
> info and I'm glad you were able to correct it.
>
> Art
>
Then using my experience with DVDs and a Canon MP970, I'd suggest you keep
that order a secret and don't spread the word.
The advice I would give for this combination is print first then burn.
DVD Printing corrupts data 
Linear Mode
