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computers / comp.sys.mac.vintage / Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?

SubjectAuthor
* Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
`* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
 `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  +* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  |`* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  | +* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Your Name
  | |`* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  | | `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files likeErikRS
  | |  `- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  | +* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  | |`* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  | | +- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  | | `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files likeErikRS
  | |  `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  | |   `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  | |    `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
  | |     `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
  | |      `- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Your Name
  | `- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files likeErikRS
  `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
   `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
    +- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Ant
    `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
     `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
      `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
       `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
        `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
         `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
          `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
           `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
            `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
             `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
              `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Andreas Rutishauser
               +- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam
               `* Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.Your Name
                `- Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.nospam

Pages:12
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: A noiseless patient Spider
Date: Sat, 15 Aug 2020 15:07 UTC
References: 1 2 3 4 5 6 7 8
Path: i2pn2.org!i2pn.org!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail
From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Sat, 15 Aug 2020 11:07:40 -0400
Organization: A noiseless patient Spider
Lines: 21
Message-ID: <150820201107404012%nospam@nospam.invalid>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de>
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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.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: Andreas Rutishauser
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: MacAndreas
Date: Sun, 16 Aug 2020 09:22 UTC
References: 1 2 3 4 5 6 7 8 9
Path: i2pn2.org!i2pn.org!weretis.net!feeder8.news.weretis.net!3.eu.feeder.erje.net!feeder.erje.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: andr...@macandreas.ch (Andreas Rutishauser)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Sun, 16 Aug 2020 11:22:15 +0200
Organization: MacAndreas
Lines: 26
Message-ID: <andreas-5889BE.11221516082020@news.individual.de>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid>
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In article <150820201107404012%nospam@nospam.invalid>,
 nospam <nospam@nospam.invalid> wrote:

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.

what do you mean by "yes it can"?


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: A noiseless patient Spider
Date: Sun, 16 Aug 2020 18:17 UTC
References: 1 2 3 4 5 6 7 8 9 10
Path: i2pn2.org!i2pn.org!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail
From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Sun, 16 Aug 2020 14:17:03 -0400
Organization: A noiseless patient Spider
Lines: 26
Message-ID: <160820201417037864%nospam@nospam.invalid>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid> <andreas-5889BE.11221516082020@news.individual.de>
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User-Agent: Thoth/1.9.0 (Mac OS X)
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View all headers
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.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: Andreas Rutishauser
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: MacAndreas
Date: Mon, 17 Aug 2020 05:45 UTC
References: 1 2 3 4 5 6 7 8 9 10 11
Path: i2pn2.org!i2pn.org!usenet.goja.nl.eu.org!3.eu.feeder.erje.net!feeder.erje.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: andr...@macandreas.ch (Andreas Rutishauser)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Mon, 17 Aug 2020 07:45:29 +0200
Organization: MacAndreas
Lines: 48
Message-ID: <andreas-1BD2B7.07452917082020@news.individual.de>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid> <andreas-5889BE.11221516082020@news.individual.de> <160820201417037864%nospam@nospam.invalid>
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In article <160820201417037864%nospam@nospam.invalid>,
 nospam <nospam@nospam.invalid> wrote:

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.

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
tml>

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>


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: A noiseless patient Spider
Date: Mon, 17 Aug 2020 11:26 UTC
References: 1 2 3 4 5 6 7 8 9 10 11 12
Path: i2pn2.org!i2pn.org!news.swapon.de!eternal-september.org!feeder.eternal-september.org!reader01.eternal-september.org!.POSTED!not-for-mail
From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Mon, 17 Aug 2020 07:26:00 -0400
Organization: A noiseless patient Spider
Lines: 62
Message-ID: <170820200726003463%nospam@nospam.invalid>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid> <andreas-5889BE.11221516082020@news.individual.de> <160820201417037864%nospam@nospam.invalid> <andreas-1BD2B7.07452917082020@news.individual.de>
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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
tml>

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.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: Andreas Rutishauser
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: MacAndreas
Date: Tue, 18 Aug 2020 06:11 UTC
References: 1 2 3 4 5 6 7 8 9 10 11 12 13
Path: i2pn2.org!i2pn.org!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: andr...@macandreas.ch (Andreas Rutishauser)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Tue, 18 Aug 2020 08:11:01 +0200
Organization: MacAndreas
Lines: 81
Message-ID: <andreas-651113.08110118082020@news.individual.de>
References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid> <andreas-5889BE.11221516082020@news.individual.de> <160820201417037864%nospam@nospam.invalid> <andreas-1BD2B7.07452917082020@news.individual.de> <170820200726003463%nospam@nospam.invalid>
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In article <170820200726003463%nospam@nospam.invalid>,
 nospam <nospam@nospam.invalid> wrote:

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.

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.

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
tml>

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.

Expample for a PowerBook with DL Superdrive


"SuperDrive" is capable of writing dual layer DVD+R at 2.4X, writing
DVD+R/-R at 8X, writing DVD-RW/+RW at 4X, reading DVD DL at 6X, reading
DVD at 8X, writing CD-R at 24X, writing CD-RW at 16X, and reading CD-ROM
at 24X.

https://everymac.com/systems/apple/powerbook_g4/specs/powerbook_g4_1.67_
17_hr.html>

Why should it not say what's written?


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: A noiseless patient Spider
Date: Tue, 18 Aug 2020 14:18 UTC
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From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Tue, 18 Aug 2020 10:18:18 -0400
Organization: A noiseless patient Spider
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References: <jvidnVoZ7OeteJvCnZ2dnUU7-XHNnZ2d@earthlink.com> <090720200735572034%nospam@nospam.invalid> <Q-edne6o2rkWFJrCnZ2dnUU7-IvNnZ2d@earthlink.com> <andreas-F4A33C.11260213082020@news.individual.de> <130820200925255821%nospam@nospam.invalid> <andreas-7F9A46.07552114082020@news.individual.de> <140820200159450533%nospam@nospam.invalid> <andreas-D9DAD1.11000015082020@news.individual.de> <150820201107404012%nospam@nospam.invalid> <andreas-5889BE.11221516082020@news.individual.de> <160820201417037864%nospam@nospam.invalid> <andreas-1BD2B7.07452917082020@news.individual.de> <170820200726003463%nospam@nospam.invalid> <andreas-651113.08110118082020@news.individual.de>
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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.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: Andreas Rutishauser
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: MacAndreas
Date: Wed, 19 Aug 2020 06:36 UTC
References: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Path: i2pn2.org!i2pn.org!news.swapon.de!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail
From: andr...@macandreas.ch (Andreas Rutishauser)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Wed, 19 Aug 2020 08:36:46 +0200
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In article <180820201018180775%nospam@nospam.invalid>,
 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.

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.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage, comp.sys.mac.systems
Organization: A noiseless patient Spider
Date: Wed, 19 Aug 2020 10:34 UTC
References: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
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From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage,comp.sys.mac.systems
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Wed, 19 Aug 2020 06:34:23 -0400
Organization: A noiseless patient Spider
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In article <andreas-78B347.08364619082020@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.

of course it does.

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?

he said he was able to read dual layer discs, although i don't think he
specifically tried a movie.

millions of others have watched dvd movies with various apple optical
drives without issues.

stop reading things you don't understand and try it yourself.

Sorry, I don't have a PowerBook G4 1 GHz at hand.

then don't try to claim it won't work.

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.

apparently not.


Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: Your Name
Newsgroups: comp.sys.mac.vintage
Organization: Aioe.org NNTP Server
Date: Wed, 19 Aug 2020 22:44 UTC
References: 1 2
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From: YourN...@YourISP.com (Your Name)
Newsgroups: comp.sys.mac.vintage
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Thu, 20 Aug 2020 10:44:19 +1200
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On 2020-08-19 06:36:46 +0000, Andreas Rutishauser said:
In article <180820201018180775%nospam@nospam.invalid>,
 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.
<snip>

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).




Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
From: nospam
Newsgroups: comp.sys.mac.vintage
Organization: A noiseless patient Spider
Date: Wed, 19 Aug 2020 22:49 UTC
References: 1 2 3
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From: nos...@nospam.invalid (nospam)
Newsgroups: comp.sys.mac.vintage
Subject: Re: Do old PowerBook G4 (1 Ghz) have problems reading huge files like a 2.54 GB DMG that I burned to a DVD+RL?
Date: Wed, 19 Aug 2020 18:49:48 -0400
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In article <rhka01$1jl2$1@gioia.aioe.org>, Your Name
<YourName@YourISP.com> wrote:


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).

just about all movies are dual-layer discs, especially with all the
extras and other stuff on them, without any indication of the number of
layers.


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