DVD disc not seen

  • Thread starter Thread starter bizee
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bizee

I backed up some documents to dvd's. I cannot recall what method I
used to do this however.

Now when putting the DVD's in either one of my DVD drives (one is RW
one is Read only). then when going to windows explorer it says insert
a disk (for the read only drive). Drive not accessible (for the read/
write drive).

Now I'm scared those backups of lots of files are gone.

Any help or suggestions?

TIA
 
I backed up some documents to dvd's. I cannot recall what method I
used to do this however.
Click to expand...

Are you certain the discs were readable right after they
were burnt? If not, perhaps they were never readable.

Now when putting the DVD's in either one of my DVD drives (one is RW
one is Read only). then when going to windows explorer it says insert
a disk (for the read only drive). Drive not accessible (for the read/
write drive).

Now I'm scared those backups of lots of files are gone.

Any help or suggestions?

TIA
Click to expand...

It's likely the dvds are bad and unreadable now. You might
try reading them on another drive besides those two, in case
environmental (dust, etc) deposits have fouled the lens on
both of the drives you'd tried. If they have a lot of
scratches on the bottom then you might try polishing out
those scratches with plastic polish. If the data is very
valuable you might try sending them to a data recovery
service.
 
Somewhere on teh intarweb "kony" typed:
Are you certain the discs were readable right after they
were burnt? If not, perhaps they were never readable.
Click to expand...

Possibly copied via Windows burning wizard and only ever queued, never
actually burnt. I never use that system myself. How many people know that
you've got to click 'file', then 'burn these files to disk'?
 
bizee said:
I backed up some documents to dvd's. I cannot recall what method I
used to do this however.

Now when putting the DVD's in either one of my DVD drives (one is RW
one is Read only). then when going to windows explorer it says insert
a disk (for the read only drive). Drive not accessible (for the read/
write drive).

Now I'm scared those backups of lots of files are gone.

Any help or suggestions?

TIA
Click to expand...

Something I've discovered, in playing with CDs and DVDs,
is the importance of doing an "error scan" on the disc
after the burning program is finished. I've discovered,
for example, that the spindle of blanks I've currently
got, can only reliably be burned at 4X, when they're
rated for much higher. Doing an error scan, any time you
use new media, allows you to "dial in" the burning process.
Now, with my spindle of blanks, I don't bother to try
above 4X any more.

Kprobe is a tool for Liteon drives, and Nero has a tool
that I've used with my drive. CDfreaks has reviews of drives,
where they do lots of these scans with different brands
of media.

http://gfx.cdfreaks.com/reviews/lg_gsa-4163b/lg123.png

Every disc has errors, and due to the block codes and
error correction features, a small number of errors
can be tolerated. But when the burner has so much
trouble reading the disk, that it seems to "stall",
an error scan in that case would show thousands of
errors. With a little experience with the error scanner,
you'll be able to relate the shape of the curve, to
the impact it has on the read-back process.

Paul
 
Paul said:
Something I've discovered, in playing with CDs and DVDs,
is the importance of doing an "error scan" on the disc
after the burning program is finished. I've discovered,
for example, that the spindle of blanks I've currently
got, can only reliably be burned at 4X, when they're
rated for much higher. Doing an error scan, any time you
use new media, allows you to "dial in" the burning process.
Now, with my spindle of blanks, I don't bother to try
above 4X any more.

Kprobe is a tool for Liteon drives, and Nero has a tool
that I've used with my drive. CDfreaks has reviews of drives,
where they do lots of these scans with different brands
of media.

http://gfx.cdfreaks.com/reviews/lg_gsa-4163b/lg123.png

Every disc has errors, and due to the block codes and
error correction features, a small number of errors
can be tolerated. But when the burner has so much
trouble reading the disk, that it seems to "stall",
an error scan in that case would show thousands of
errors. With a little experience with the error scanner,
you'll be able to relate the shape of the curve, to
the impact it has on the read-back process.

Paul
Click to expand...

like you I ALWAYS burn at slower speeds than suppliers state after all I am
not normally in a hurry but just want a good safe copy.

recently looking for some DVD+r dual layers, I noticed retailers are now
putting caveats on their ads/sites, saying "If you experience problems
burning at higher speeds this could be the result of using out of date
drivers for your CD/DVD burner"...........
 
like you I ALWAYS burn at slower speeds than suppliers state after all I am
not normally in a hurry but just want a good safe copy.

recently looking for some DVD+r dual layers, I noticed retailers are now
putting caveats on their ads/sites, saying "If you experience problems
burning at higher speeds this could be the result of using out of date
drivers for your CD/DVD burner"...........
Click to expand...

It's a shame they made the statement like they did, it will
probably cause some people to spend a lot of time looking
for "drivers" for their CD/DVD burner when what they
might've needed was an updated firmware.
 
kony said:
It's a shame they made the statement like they did, it will
probably cause some people to spend a lot of time looking
for "drivers" for their CD/DVD burner when what they
might've needed was an updated firmware.
Click to expand...

right............and its probably what I meant to say :-)
 
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