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Re: DVDs are worse than CDs

From Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com>
Newsgroups alt.comp.periphs.cdr, comp.publish.cdrom.hardware
Subject Re: DVDs are worse than CDs
Date 2026-01-09 23:48 +0100
Organization To protect and to server
Message-ID <d06e187c-ff0c-1014-3424-3e20fb6b62a9@irrt.De> (permalink)
References <e03ec914-2ba4-4567-9c79-f8d103a9c2c7@irrt.De>

Cross-posted to 2 groups.

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Dear all:

"To maximize disc life-span

store discs vertically, do not stack them"
says
HTTPS://WWW.IBM.com/support/pages/node/847052?mhsrc=ibmsearch_a&mhq=%26quot%3Bstacking%20or%20allowing%20discs%20to%20rub%20against%20each%20other%26quot%3B
but Ghostrider <-00-@fitron.142> recommends to store horizontally in
Message-ID: <1308bfdd2makm9c@news.supernews.com>
in
Subject: Re: Previously burned DVD's now having problems playing
in alt.comp.periphs.cdr
on
Date: Fri, 23 Mar 2007 12:42:15 -0700
-

"The issue is how are these DVD's stored? Light is light and it will
degrade burned discs. Safely storing CD-R's and DVD-R's means putting
them away, face down in jewel boxes and away from light, as in a file
cabinet, file safe, etc. And, BTW, from the physics standpoint, office
lighting has its own pecularities in regards to specific wavelengths,
esp. fluorescent lighting. And as for more permanent media, how about
MO, magneto-optical."

A thread - "Don't stack cdrs?" in news:alt.comp.periphs.cdr - refers to
HTTPS://WWW.CDRFAQ.org/faq07.html#S7-27
"Store discs vertically rather than flat. Over a long period, gravity 
will warp the disc if it's left flat in a jewel case. Most jewel cases 
support the disc by its center, holding it off the backing.
[. . .]
Open a recordable disc package only when you are ready to record data onto 
that disc. If your discs came on a spindle, leave them on the spindle 
until you need them.
[. . .]
Do not bend the disc. Flexing the disc can cause stress patterns to form 
in the polycarbonate, and if you stretch it far enough you might start to 
deform the reflective and recording layers. Take care when pulling discs 
out of tight jewel cases."
says
HTTPS://WWW.CDRFAQ.org/faq07.html#S7-27
but not everyone in "Don't stack cdrs?" agrees.

"Fortean Times" says that for every expert, there is an equal, but 
opposite, expert.

I searched for
vertical
in aus.computers.cdrom where I found 7 relevant posts. E.g.
Message-ID: <3fce4a5e$0$29694$61ce578d@news.syd.swiftdsl.com.au>
Subject: Re: Life time of a DVD (and various CDs)
From: "Dave B." <daveNOSPAM@myisp.com>
Date: Thu, 4 Dec 2003 07:45:41 +1100

Cf.
From: ppnerkDELETETHIS@yahoo.com (Phred)
Newsgroups: alt.comp.periphs.cdr,aus.computers
Subject: Re: Archiving [CDRs] On  Bulk Spindles
Date: Fri, 06 Feb 2004 14:02:21 GMT
Message-ID: <c006me$112nun$1@ID-151056.news.uni-berlin.de>
-
|----------------------------------------------------------------------|
|"In article <5tDUb.41951$%93.10333903@news4.srv.hcvlny.cv.net>,       |
|Brian T. Rowe <browe@iname.com> wrote:                                |
|>if they are backups of backups, sounds like a                        |
|>good space-saving idea  (you do a better job                         |
|> of archiving than some companies do!)  I've                         |
|> read some criticism that, over time, gravity                        |
|>might take its toll, the discs may begin to                          |
|>touch and the laminate might be affected.                            |
|                                                                      |
|Yeah.  I've read stuff from the professional technonerds who claim the|
|*only* safe long-term storage is vertically in the original or similar|
|jewel cases."                                                         |
|----------------------------------------------------------------------|

From: Toshi1873 <toshi1873@nowhere.com>
Newsgroups: alt.comp.periphs.cdr
Subject: Re: Is ISO superior to UDF?
Date: Thu, 12 Feb 2004 10:35:06 -0500
Message-ID: <MPG.1a95673622c3bbae989766@news-50.giganews.com>
refers to
HTTPS://SlashDot.org/story/04/01/24/0054242/guide-to-digital-preservation-from-nist
which I partially read. It says:
|------------------------------------------------------------------------|
|"Looks like CD storage racks got it wrong then... (Score:4, Interesting)|
|by rklrkl ( 554527 ) on Saturday January 24, 2004 @07:57AM (#8074427)   |
|Homepage                                                                |
|If you are looking for a CD storage rack for your music CDs, almost     |
|all of them appear to stack the CDs one above the other (i.e. the CDs   |
|lie horizontally), which clearly helps to save space. However, now      |
|we're told "do not store discs horizontally for a long time (years)" !  |
|So have almost all the CD storage rack manufacturers got it 100% wrong  |
|for two decades then?"                                                  |
|------------------------------------------------------------------------|
and
|-----------------------------------------------------------------------|
|"Re:Looks like CD storage racks got it wrong then.. (Score:5,          |
|Informative)                                                           |
|by mobby_6kl ( 668092 ) on Saturday January 24, 2004 @08:22AM          |
|(#8074499)                                                             |
|from the 50-page pdf: [USENET note after November 2025: this           |
| SlashDot.org webpage has a broken hyperlink for a 50-page PDF file]   |
|Physical mishandling of the disc is usually the cause of polycarbonate*|
|layer damage. The polycarbonate may also flex or bend if               |
|stored for a long period of time in a nonvertical position.            |
|and                                                                    |
|Long-term horizontal storage, particularly in a                        |
|heated environment, can cause the disc to become permanently           |
|bowed. While the data may still be intact, the disc may not operate    |
|properly in the drive or permit the laser to follow the track."        |
|-----------------------------------------------------------------------|

Linea Recta wrote in news:alt.video.dvd.tech in 2006:
|----------------------------------------------------------------------------|
|"I was reading the small text of 'do and don't' on a DVD lay in, where it   |
|says: "store vertically". Never been aware of that, I have been storing lots|
|of media horizontally! Hope it won't affect te media...                     |
|                                                                            |
|                                                                            |
|                                                                            |
|--                                                                          |
|                                                                            |
||\  /|                                                                      |
|| \/ |@rk                                                                   |
| \../                                                                       |
|  \/os                                                                      |
|                                                                            |
|mccm dot vos at hccnet dot nl"                                              |
|----------------------------------------------------------------------------|

I had not gotten a clarification about vertical discs versus horizontal 
disks so I downloaded all the articles that news.BlueWorldHosting.com has 
in . . .

115,752 articles 209MB uk.media.dvd

28,295 articles 96MB alt.comp.periphs.cdr

34,889 articles 77MB alt.video.dvd.authoring

33,753 articles 71MB alt.video.dvd.tech

33,026 articles 68MB alt.video.dvdr

21,801 articles 47MB rec.video.dvd.tech

3,787 articles 45MB comp.publish.cdrom.hardware

1,820 articles 13MB comp.sys.ibm.pc.hardware.cd-rom

3,665 articles 11MB alt.cd-rom

3,536 articles 8.7MB rec.video.dvd.misc

136 articles 2.9MB comp.publish.cdrom.multimedia

270 articles 1.1MB alt.cdr.panasonic

246 articles 928KB alt.cd-rom.reviews

289 articles 772KB alt.comp.periphs.cdr.mac

257 articles 667KB aus.computers.cdrom

207 articles 331KB alt.philips.cdr.discussion

and

82 articles 194KB alt.comp.periphs.cdr.mitsumi

thanks to news.BlueWorldHosting.com and Allan Saddi - Saddi.com - and I 
searched within these hundreds of megabytes of USENET posts.

I found
vertical
in
comp.publish.cdrom.hardware
in 4 posts but they do not add more insihts than are already in this 
thread.

I found
vertical
in
alt.comp.periphs.cdr
in 66 posts of which
circa 47 are irrelevant posts.

I found
vertical
in
alt.cdr.panasonic
but only in 2 irrelvant posts.

I found
vertical
in
comp.sys.ibm.pc.hardware.cd-rom
but only in 25 irrelvant posts.

I found
vertical
in
alt.video.dvd.authoring
in 218 posts of which
circa 208 are irrelevant posts.

I found
vertical
in
alt.video.dvdr
in 73 posts of which
circa 71 are irrelevant posts.

I found
vertical
in
alt.video.dvd.tech
and
uk.media.dvd
and
rec.video.dvd.tech
and
rec.video.dvd.misc
in 150 and 184 and 161 and 23 posts, respectively.
Judging from Subject: fields, most thereof seem to be irrelevant posts.

I did not find
vertical
in
alt.comp.periphs.cdr.mac
and
alt.comp.periphs.cdr.mitsumi
and
alt.cd-rom.reviews
and
alt.cd-rom
and
comp.publish.cdrom.multimedia

I searched via
HTTPS://WWW.CDRInfo.com/d7/search/node/vertical
but the first webpage of results is irrelevant so I did not bother with 
its rest. Similarly
HTTPS://WWW.VideoHelp.com/search?q=vertical
I glanced at
HTTPS://WWW.CDRInfo.com/Sections/FAQ/Home.aspx
-->
Enter Words List
-->
vertical
-->
Search
An example search result thereof does not even have "vertical"!

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Thread

DVDs are worse than CDs Nioclás Pól Caileán de Ghloucester <Spamassassin@irrt.De> - 2025-11-08 17:44 +0100
  Re: DVDs are worse than CDs ant@zimage.comANT (Ant) - 2025-11-09 02:18 +0000
    Re: DVDs are worse than CDs Nioclás Pól Caileán de Ghloucester <Spamassassin@irrt.De> - 2025-11-09 13:41 +0100
      Re: DVDs are worse than CDs ant@zimage.comANT (Ant) - 2025-11-10 01:16 +0000
        Re: DVDs are worse than CDs Nioclás Pól Caileán de Ghloucester <Spamassassin@irrt.De> - 2025-11-10 02:33 +0100
    Re: DVDs are worse than CDs Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-08 13:54 +0100
  Re: DVDs are worse than CDs Nioclás Pól Caileán de Ghloucester <thanks-to@Taf.com> - 2026-01-09 23:48 +0100

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