Sizes (and packaging) and interfaces.
Aside from SSDs, it seems that the mobile/handheld market is largely
driving FLASH development.
There, capacity and small physical size seem to be the criteria.
I suspect durability is probably low on the list.
But, more importantly, it is targeted for use as a secondary medium;
we don't see moves towards XIP (not easily supported with those
interfaces).
As such, durability is likely not as important.
And, removability (replace-ability) has value.
While I can solder-down "replaceable" packages, the other aspects
of its targeted market seem to discourage that approach (users
don't *invest* in flash devices but, rather, expect to be able to >replace/upgrade them long before they wear out).
Anyone using "raw" FLASH devices, in large "capacities", who can
comment on the trends they are seeing in *that*/their market?
john larkin <jl@glen--canyon.com>wrote:
On Wed, 31 Dec 2025 15:26:48 -0700, Don Y<blockedofcourse@foo.invalid> wrote:
Sizes (and packaging) and interfaces.
Aside from SSDs, it seems that the mobile/handheld market is largely >>driving FLASH development.
There, capacity and small physical size seem to be the criteria.
I suspect durability is probably low on the list.
But, more importantly, it is targeted for use as a secondary medium;
we don't see moves towards XIP (not easily supported with those >>interfaces).
As such, durability is likely not as important.
And, removability (replace-ability) has value.
While I can solder-down "replaceable" packages, the other aspects
of its targeted market seem to discourage that approach (users
don't *invest* in flash devices but, rather, expect to be able to >>replace/upgrade them long before they wear out).
Anyone using "raw" FLASH devices, in large "capacities", who can
comment on the trends they are seeing in *that*/their market?
We use a Winbond 32 Mbit flash chip to run our Raspberry Pi RP2040
chips. It has enough storage for a couple of huge programs and a hefty
FPGA bit file.
https://www.dropbox.com/scl/fi/npkdfdb4shr2m2jokqa1l/X116_On_Plate.jpg?rlkey=negw6radsojplh0zso6gha2vb&raw=1
It costs 75 cents, same price as the CPU.
We still use USB hard drives as the monthly company backup. That's
about 1.5 Tbytes. Memory sticks are still more expensive.
Jan Panteltje <alien@comet.invalid>wrote:
john larkin <jl@glen--canyon.com>wrote:<blockedofcourse@foo.invalid> wrote:
On Wed, 31 Dec 2025 15:26:48 -0700, Don Y
Sizes (and packaging) and interfaces.
Aside from SSDs, it seems that the mobile/handheld market is largely >>>driving FLASH development.
There, capacity and small physical size seem to be the criteria.
I suspect durability is probably low on the list.
But, more importantly, it is targeted for use as a secondary medium;
we don't see moves towards XIP (not easily supported with those >>>interfaces).
As such, durability is likely not as important.
And, removability (replace-ability) has value.
While I can solder-down "replaceable" packages, the other aspects
of its targeted market seem to discourage that approach (users
don't *invest* in flash devices but, rather, expect to be able to >>>replace/upgrade them long before they wear out).
Anyone using "raw" FLASH devices, in large "capacities", who can
comment on the trends they are seeing in *that*/their market?
We use a Winbond 32 Mbit flash chip to run our Raspberry Pi RP2040
chips. It has enough storage for a couple of huge programs and a hefty
FPGA bit file.
https://www.dropbox.com/scl/fi/npkdfdb4shr2m2jokqa1l/X116_On_Plate.jpg?rlkey=negw6radsojplh0zso6gha2vb&raw=1
It costs 75 cents, same price as the CPU.
We still use USB hard drives as the monthly company backup. That's
about 1.5 Tbytes. Memory sticks are still more expensive.
My experience with high capacity (2 TB) USB memory sticks is not good
Could have been fake ebay ones.
Samsung SDcards seem OK, never a problem.
This Raspberry Pi4 8GB I am posting this from and I use for writing codeOops. 4 TB of course
has a 128 MB Samsung micro-sdcard.
And both Pi4 have a 4 TB Toshiba USB harddisc connected.
raspberrypi: ~ # df
Filesystem 1K-blocks Used Available Use% Mounted on
/dev/root 124334328 31537324 87698176 27% /
devtmpfs 3879380 0 3879380 0% /dev
tmpfs 4044244 14224 4030020 1% /dev/shm
tmpfs 1617700 1320 1616380 1% /run
tmpfs 5120 4 5116 1% /run/lock
/dev/mmcblk0p1 258095 50413 207682 20% /boot
tmpfs 808848 24 808824 1% /run/user/1000
/dev/sda2 3844420600 3218937876 430122060 89% /mnt/sda2
That 4GB has much of what I ever wrote, also backups of the SDcards of other Raspberries (now 5 , 4 on 24/7, PCs and laptop.
Normal PCs are hardly ever on, for example when I want to read DVDs or write M-Discs or do do some satellite stuff (uses special
PCI cards).
The 'locate' function (it daily runs 'updatedb') on this Pi4 finds everything I ever did in seconds.
Combine it with 'grep' on the command line:
locate -i christmas | grep -i wav
raspberrypi: ~ # locate -i christmas | grep -i wav >/home/pi/.xpequ/christmas-phonelink-sidea.wav.equalizer >/home/pi/.xpequ/christmas-phonelink-sidea1.wav.equalizer >/home/pi/.xpequ/christmas-phonelink-sideb1.wav.equalizer >/home/pi/.xpequ/christmas-phonelink-sideb2.wav.equalizer
locate -i christmas 10.94s user 0.09s system 99% cpu 11.039 total
grep -i wav 0.01s user 0.00s system 0% cpu 11.037 total
Find any code in seconds:
locate -i xpsa | grep .c >/mnt/sda2/backups/laptop_sda11/usr/local/httpd/htdocs/panteltje/xpsa/xpsa-0.6.4/xpsa.c
hundreds of entries
Also harddiscs are likely less sensitive to big EMP effects.
The Toshiba 4 TB USB harddiscs I use now seem excellent
One on the TV for movies and stuff
I do use USB hubs on the Pi4 Raspies, much more stuff connected to those >There is more to it,...
Sizes (and packaging) and interfaces.
Aside from SSDs, it seems that the mobile/handheld market is largely
driving FLASH development.
There, capacity and small physical size seem to be the criteria.
I suspect durability is probably low on the list.
But, more importantly, it is targeted for use as a secondary medium;
we don't see moves towards XIP (not easily supported with those
interfaces).
=?UTF-8?Q?Niocl=C3=A1s_P=C3=B3l_Caile=C3=A1n_de_Ghloucester?= <thanks-to@Taf.com>wrote:
On Thu, 1 Jan 2026, Jan Panteltje wrote:"My experience with high capacity (2 TB) USB memory sticks is not good
[. . .]
This Raspberry Pi4 8GB I am posting this from and I use for writing code
has a 128 MB Samsung micro-sdcard.
And both Pi4 have a 4 TB Toshiba USB harddisc connected.
[. . .]
[. . .]
Also harddiscs are likely less sensitive to big EMP effects.
The Toshiba 4 TB USB harddiscs I use now seem excellent"
Gelukkig nieuwjaar!
We had bad experiences with USB hard disks and with USB memory sticks. Why >do you not have problems with USB hard disks?
Met vriendelijke groeten!
=?UTF-8?Q?Niocl=C3=A1s_P=C3=B3l_Caile=C3=A1n?= de Ghloucester <thanks-to@Taf.com>wrote:
Jan Panteltje schreef: >|---------------------------------------------------------||"The security one never spins down, is always recording."| >|---------------------------------------------------------|
Impressive!
Jan Panteltje schreef: >|----------------------------------------------------------------------|
|"[. . .] |
| |
|[. . .] do keep backups so.. no problem. |
|[. . .] |
| |
|[. . .]" | >|----------------------------------------------------------------------|
Dank u wel.
I try external USB media which failed for backups of many gigabytes
each.
|-----------------------------------------------------------------------| >|"What is your problem? Bad connectors? What make / model are you using?|
|[. . .] |
| |
|[. . .] | >|The Toshibas spin down after a short time if no data transfer to | >|those, so that may help longlivity [. . .]" | >|-----------------------------------------------------------------------|
We tried these failed external USB media with laptop/notebook
computers. Old laptops' computers' USB ports tend to stop
working. Such a problem might lead to not enough electricity being
provided by a USB port to a peripheral. Whatever the reasons, USB
flash sticks from various manufacturers and of various sizes (8GB and
much bigger) have a problem or a different problem: e.g. an 8GB stick >completely stopped working whereas a different problem which I
experience is FAT tables becoming corrupted so files are still there
but unhelpfully renamed. I back up many versions of a file, so on such
a USB thumb drive it is not easy to determine which version is which
version.
Each of these USB flash drive pens experienced no more than a few
hundred power cycles so way under a USB specification for longevity.
As for failed external USB hard disks . . .
We do not have many experiences with external USB hard disks. A then
workmate who is not a computer scientist used to then use a
misconfigured CentOS GNU/Linux installation on a laptop computer. He
is not at all at fault that it used to be misconfigured - such faults
are entirely faults of the inept administrator who is called Paulo
Alexandre Cunha Gomes who owns
NetStream - Consultadoria e Gest|uo de Redes Inform|iticas Lda,
Rua da Cidade de Fez Lt. 96, Nr. 25 Esq.,
3000-445 Coimbra,
Portugal.
This laptop computer is for simulations which almost fill up its
internal hard disk in a matter of hours. This external hard disk
failed almost the 1st time that this then workmate attempted to back
up onto this external hard disk. This failure upset him. He
incorrectly blamed himself. I told him that he is not at fault over
this failure.
Years later I myself used an external USB hard disk for the 1st
time. I paid 50 Euro for it (not 49.99 Euro - exactly 50 Euro). I used
it with a notebook computer or a laptop computer running Microsoft
Windows. This external drive came with an NTFS. A few days later files
on it became corrupted. In 2018 its filesystem used to be bad. Like
with USB flash drives' corrupted FAT filesystems, maybe an operating
system or a computer's provision of USB power is at fault.
On
Date: Wed, 28 Dec 2016 18:16:08 +0100 (CET)
I wrote this unanswered email to the company which sold me my failed
USB external hard disk: >########################################################################
#"[. . .] #
# #
#I bought from you an external hard disk. Yesterday it has been # >#connected to a computer that it had not been connected to # >#before. Unfortunately the NTFS on it became corrupt yesterday. #
# #
#I ran ChkDsk as an administrator on Windows XP. ChkDsk of Windows XP # >#reported that e.g. more than 10 files are illegible and ChkDsk did not# >#repair this filesystem. #
# #
#I also attempted to access this disk on Windows 7 as an ordinary user #
#(I do not have access to an administrator account on Windows 7). #
# # >#When will you be able to repair this? #
# #
#[. . .]" # >########################################################################
In 2018 during many days of a single run of ChkDsk, ChkDsk predicted
that it would take years to complete that run on that hard disk in the >corrupted state it used to suffer then.
(I used to use many distributions of GNU/Linux and many versions of
Microsoft Windows and one version of Apple MacOS with USB thumb
drives. An Apple did not destroy them.
I use only Microsoft Windows with external USB hard disks. An
ex-workmate used CentOS with an external USB hard disk when it
failed.)
As for external hard disks which did not fail . . .
I have a WD Elements SE "one terabyte" USB "Portable hard drive" and
another WD Elements hard drive. They are not from the aforementioned
shop. They are not from NetStream - Consultadoria e Gest|uo de Redes >Inform|iticas Lda. I cautiously do not power them much because I do not
want repetitions of our external-hard-disk misadventures. I do not yet
detect a problem with these WD Elements drives.
(S. HTTP://Gloucester.Insomnia247.NL/ fuer Kontaktdaten!)
=?UTF-8?Q?Niocl=C3=A1s_P=C3=B3l_Caile=C3=A1n?= de Ghloucester <thanks-to@Taf.com>wrote:
Jan Panteltje schreef: >|------------------------------------------------------------------------| >|"I remember I once had a problem with my Seagate 1 TB harddisc on Linux,| >|emailed Seagate 'We do not support Linux' was their answer! | >|[. . .]" | >|------------------------------------------------------------------------|
I am sorry to hear so.
Jan Panteltje schreef: >|-----------------------------------------------------------------------|
|"I do not run MS windows at all here. |
|[. . .] |
| |
|[. . .]" | >|-----------------------------------------------------------------------|
Congratulations. You are sensible.
I became coerced to use Microsoft Windows to transfer files to
computers belonging to different persons. E.g. printing shops.
Jan Panteltje schreef: >|-----------------------------------------------------------------------| >|"These are the 4 TB harddisks I use now: |
|[. . .] |
|[. . .] reliable seller." | >|-----------------------------------------------------------------------|
Thanks for details. I searched on that website for the latest good
printer model that I bought but it did not show it to me. This printer
is a Canon PIXMA GM4050 MegaTank printer. It is still on its 1st
bottle of ink. It printed 5693 pages. Good value for money. Unlike
Epson. Cf.
HTTP://Gloucester.Insomnia247.NL/Epson/
I bought my Canon printer on 23rd March 2025.
This Canon model supports Apple iOS and Google Android, but alas no
other Linux distribution. I should contact Canon.
(S. HTTP://Gloucester.Insomnia247.NL/ fuer Kontaktdaten!)
=?UTF-8?Q?Niocl=C3=A1s_P=C3=B3l_Caile=C3=A1n?= de Ghloucester <thanks-to@Taf.com>wrote:
Jan Panteltje schreef: >|--------------------------------------------------------------------------| >|"I have an EPSON_Stylus_Photo_R200 color printer, used it to print on CDs.| >|[. . .] | >|Worked very well, | >|[. . .]" | >|--------------------------------------------------------------------------|
Really? I would had suspected that ink destroys a C.D. but I have
glanced at
HTTPS://WWW.CDRFAQ.org/faq07.html
which reports that you can print onto a CD.
You own good resources and you are insightful. I ask questions in >alt.comp.periphs.cdr and comp.publish.cdrom.hardware since November
. . .
Subject: DVDs are worse than CDs
and
Subject: dvdisaster or QuickPar or etc.: do you use them to secure discs?
so far with another thread planned.
Refutations or confirmations or insights or other possible
contributions from you are welcome. Dank u wel!
|--------------------------------------------------------------------------| >|"There are countries that have stopped delivering paper to their people: | >|[webpage about Denmark . . .]" | >|--------------------------------------------------------------------------|
Friends live in Denmark. A withdrawal of a postal service affected us
before I heard that a journalist reported this problem. This
withdrawal shall probably be very bad to persons.
I had not known that a similar withdrawal happened in another country
or other countries. What country is it or what countries are they?
=?UTF-8?Q?Niocl=C3=A1s_P=C3=B3l_Caile=C3=A1n?= de Ghloucester <thanks-to@Taf.com>wrote:
Jan Panteltje schreef: >|--------------------------------------------------------------------------------||"Do not print on the signal side but on the white colored side of the discs :-)"|
|--------------------------------------------------------------------------------|
:)
|---------------------------------------------------------------------------| >|">>You own good resources and you are insightful. I ask questions in | >|>>alt.comp.periphs.cdr and comp.publish.cdrom.hardware since November | >|>>. . . | >|>>Subject: DVDs are worse than CDs | >|>>and | >|>>Subject: dvdisaster or QuickPar or etc.: do you use them to secure discs?| >|>>so far with another thread planned. | >| | >|What do you man by 'secure disc'? | >|[. . .]" | >|---------------------------------------------------------------------------|
E.g. "In addition you should be looking to add parity/recovery data to
your CD-R/DVD-R backup files, which serves two purposes: (a) allows
you to verify that the files are still readable and intact (b) allows
you to recover damaged files if you have enough recovery data. It
allows you to recover from scratches that the underlying ECC was
unable to correct for."
E.g. "I'd like to use QuickPar, or par2cmdline, to protect archives
stored on CD-R and DVD-R media."
E.g. "dvdisaster complements optical media [. . .] with error
correction data in a way that they are fully recoverable even after
some read errors have developed. This enables you to rescue the
complete data to a new medium."
|---------------------------------------------------------------------------| >|"I have over a thousand burned discs here, thousand in this box: | >| https://panteltje.nl/pub/CD_box_binnenkant_IXIMG_0549.JPG | >|[. . .] | >| | >|[. . .] | >|Old CDs I burned decennia ago kept in that box still play great here." | >|---------------------------------------------------------------------------|
Impressive again! Are DVDs less durable?
Many of the white things which you show in this picture seem to be too
thin to be jewel cases. I read a suspicion in a different newsgroup
that sleeves might be OK for C.D.s but dangerous for D.V.D.s . . .
Richard Hassinger warns in
Message-ID: <eo4ug0dr523p1bo461a7fna9agjbtqo456@4ax.com>
in
Subject: Re: Media Storage after you burn?
in alt.video.dvdr since
Date: Mon, 02 Aug 2004 23:29:01 -0500
. . . >########################################################################
#"My opinion is that the sleeves are not so good. Even without removing# >#them for a long time, they tend to jostle around and get scuffed up. I# >#have hundreds of CDs from the past five years and when I pull them out#
#of the sleeves I can see that they have gotten scuffed up some. # >#Doesn't make a big difference for the CDs, but it might be a big deal #
#for the DVDs. #
# # >#Like the other person said, the holders for the DVDs can put a lot of # >#pressure on the disc. I have had some trouble getting DVDs out of some#
#of those locking mechanisms and had to bend the disc quite a bit while# >#prying it loose. I have seen at least ten different mechanisms, most #
#of them seem to force me to be rough with the disc. #
# # >#Worse, if one of the prongs breaks off, the disc can slip off the # >#mechanism and shake around inside the box, with the rest of the # >#plastic parts scratching up the disc." # >########################################################################
You do not seem to suffer such a problem.
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