In article <redcnc$t1j$1@solani.org>, ErikRS <mac-dane@is.invalid>
wrote:
Looks like it's the drive after getting the same exact results with Verbatim brand DVD+R DL. :(
Hm, have you tried with a DVD-R instead of the DVD+R? - I recall from years back that some of the Matshita and Sony*) SuperDrives didnot like the DVD+R, but worked fine with DVD-R - both single and dual-layer DVDs.
he has a powerbook g4, which has *no* problem with dvd+r or -r.
dvd+r has better error correction so it might last a little longer.
Looks like it's the drive after getting the same exact results with Verbatim brand DVD+R DL. :(
Hm, have you tried with a DVD-R instead of the DVD+R? - I recall from years back that some of the Matshita and Sony*) SuperDrives didnot like the DVD+R, but worked fine with DVD-R - both single and dual-layer DVDs.
he has a powerbook g4, which has *no* problem with dvd+r or -r.
dvd+r has better error correction so it might last a little longer.
Well, both brand burns resulted the same results. :(
In article <_eSdnX9vjZOGw5fCnZ2dnUU7-cmdnZ2d@earthlink.com>, Ant <ant@zimage.comANT> wrote:
Looks like it's the drive after getting the same exact results with Verbatim brand DVD+R DL. :(
Hm, have you tried with a DVD-R instead of the DVD+R? - I recall from years back that some of the Matshita and Sony*) SuperDrives didnot like
the DVD+R, but worked fine with DVD-R - both single and dual-layer DVDs.
he has a powerbook g4, which has *no* problem with dvd+r or -r.
dvd+r has better error correction so it might last a little longer.
Well, both brand burns resulted the same results. :(
further evidence it's the drive.
In comp.sys.mac.vintage nospam <nospam@nospam.invalid> wrote:
In article <_eSdnX9vjZOGw5fCnZ2dnUU7-cmdnZ2d@earthlink.com>, Ant
<ant@zimage.comANT> wrote:
he has a powerbook g4, which has *no* problem with dvd+r or -r.
Looks like it's the drive after getting the same exact results with >>>>>> Verbatim brand DVD+R DL. :(
Hm, have you tried with a DVD-R instead of the DVD+R? - I recall from >>>>> years back that some of the Matshita and Sony*) SuperDrives didnot like >>>>> the DVD+R, but worked fine with DVD-R - both single and dual-layer DVDs. >>>>
dvd+r has better error correction so it might last a little longer.
Well, both brand burns resulted the same results. :(
further evidence it's the drive.
Yeah, it wasn't used much. :(
In comp.sys.mac.vintage nospam <nospam@nospam.invalid> wrote:
In article <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com>, Ant <ant@zimage.comANT> wrote:
Hello.
Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL? Finder says -- size and can't open it (damaged file). However, a 2012 13.3" MacBook Pro's mac OS Mojave v10.14.6 had no problems reading and opening it.
none whatsoever, however, the optical drive could be failing and/or the disc itself deteriorating.
Yeah, it looks like this PB G4's internal original Matshita DVD-R UJ-815 drive is going bad since it has problems reading. But then MacBook Pro's internal drive and my decade old 64-bit W7 HPE SP1 PC's internal Optiarc
DVD RW AD-78220S drive had no problems.
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
In article <andreas-F4A33C.11260213082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
In article <andreas-F4A33C.11260213082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read
+R or DualLayer,
In article <andreas-7F9A46.07552114082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read
+R or DualLayer,
i assume you mean dvd-r, and yes it can.
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
In article <andreas-D9DAD1.11000015082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read
+R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read
+R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
In article <andreas-5889BE.11221516082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports
DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't read
+R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new ones.
of course. If the drive is only capable of reading CVD-R, it can't
read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
From everymac.com
Apple reports that the single-speed slot-loading DVD-R/CD-RW
"SuperDrive" is capable of writing DVD-R at 1X, reading DVD at 6X,
writing CD-R at 8X, writing CD-RW at 4X, and reading CD-ROM at 24X.
<https://everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.0.h
Apple reports that the slot-loading DVD/CD-RW "Combo" drive is capable
of reading DVD at 8X, writing CD-R at 24X, writing CD-RW at 10X, and
reading CD-ROM at 24X.
<https://everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.0_1 5.html>
In article <andreas-1BD2B7.07452917082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
Can PB GB4's internal drive read
burned (Memorex) DL DVD+Rs well?
do you mean DualLayer by DL?
According to Mactracker a PowerBook G4 (15 inch, FW800) supports DVD-R
No Dual Layer, No +R
he asked about reading already created discs, not burning new
ones.
of course. If the drive is only capable of reading CVD-R, it can't
read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
no i'm very definitely not wrong.
all dvd drives can read dual layer. it's part of the dvd spec.
almost all movies are dual-layer discs. if it can play movies (which it
can), then it reads dual layer.
+r and -r refers to how the disc is *burned*, not how it's read. very
old drives might have occasional problems because writable discs are
less reflective than pressed discs, but that hasn't been an issue in a
very, very long time.
From everymac.com
Apple reports that the single-speed slot-loading DVD-R/CD-RW
"SuperDrive" is capable of writing DVD-R at 1X, reading DVD at 6X,
writing CD-R at 8X, writing CD-RW at 4X, and reading CD-ROM at 24X.
<https://everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.0.h
Apple reports that the slot-loading DVD/CD-RW "Combo" drive is capable
of reading DVD at 8X, writing CD-R at 24X, writing CD-RW at 10X, and reading CD-ROM at 24X.
<https://everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.0_1 5.html>
that doesn't say what you think it does.
it lists the various *writing* modes, which is certainly important, but
not relevant for reading.
of course. If the drive is only capable of reading CVD-R, it can't
read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
no i'm very definitely not wrong.
all dvd drives can read dual layer. it's part of the dvd spec.
please prove your claim.
almost all movies are dual-layer discs. if it can play movies (which it can), then it reads dual layer.
+r and -r refers to how the disc is *burned*, not how it's read. very
old drives might have occasional problems because writable discs are
less reflective than pressed discs, but that hasn't been an issue in a very, very long time.
In article <andreas-651113.08110118082020@news.individual.de>, Andreas Rutishauser <andreas@macandreas.ch> wrote:
of course. If the drive is only capable of reading CVD-R, it
can't
read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
no i'm very definitely not wrong.
all dvd drives can read dual layer. it's part of the dvd spec.
please prove your claim.
what part of "it's part of the dvd spec" is not clear?
almost all movies are dual-layer discs. if it can play movies (which it can), then it reads dual layer.
^^proof^^
stop reading things you don't understand and try it yourself.
there is no issue with reading dl discs, unless the dvd drive is
defective or non-compliant, or the disc has deteriorated or was
improperly burned, all failure modes, not the norm.
+r and -r refers to how the disc is *burned*, not how it's read. very
old drives might have occasional problems because writable discs are
less reflective than pressed discs, but that hasn't been an issue in a very, very long time.
^^additional^proof^^
again, stop reading things that you don't understand and try it
yourself.
of course. If the drive is only capable of reading CVD-R,
it can't read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
no i'm very definitely not wrong.
all dvd drives can read dual layer. it's part of the dvd spec.
please prove your claim.
what part of "it's part of the dvd spec" is not clear?
The DVD spec does not contain a single line how an optical drive has to
be built.
almost all movies are dual-layer discs. if it can play movies (which it can), then it reads dual layer.
^^proof^^
Has Ant tried this with his G4?
stop reading things you don't understand and try it yourself.
Sorry, I don't have a PowerBook G4 1 GHz at hand.
there is no issue with reading dl discs, unless the dvd drive is
defective or non-compliant, or the disc has deteriorated or was
improperly burned, all failure modes, not the norm.
+r and -r refers to how the disc is *burned*, not how it's read. very old drives might have occasional problems because writable discs are less reflective than pressed discs, but that hasn't been an issue in a very, very long time.
^^additional^proof^^
again, stop reading things that you don't understand and try it
yourself.
I understand what I read.
In article <180820201018180775%nospam@nospam.invalid>,<snip>
nospam <nospam@nospam.invalid> wrote:
In article <andreas-651113.08110118082020@news.individual.de>, Andreas
Rutishauser <andreas@macandreas.ch> wrote:
of course. If the drive is only capable of reading CVD-R, >>>>>>>>>>> it can't read +R or DualLayer,
i assume you mean dvd-r, and yes it can.
I meant DVD-R, sorry, and that is what I'm writing
what you're writing is wrong. very much wrong.
what do you mean by "yes it can"?
yes it can read +r and dual-layer.
you're wrong.
no i'm very definitely not wrong.
all dvd drives can read dual layer. it's part of the dvd spec.
please prove your claim.
what part of "it's part of the dvd spec" is not clear?
The DVD spec does not contain a single line how an optical drive has to
be built.
Yep. We have an old el cheapo brand DVD player plugged into our TV. It
works fine with factory-made single layer DVD movie discs, but cannot
play factory-made dual-layer movie discs (which do work fine via an
external USB DVD drive plugged into my new-ish Mac).
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