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<div class="moz-cite-prefix">Den 27.12.2022 02:17, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite"
cite="mid:CA+rFky6eJKuJ1gB+8YRZQXJ2i0ViwpgrKF4+XgabiebdDUEVUw@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="auto">
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<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">вт, 27 дек. 2022 г., 03:57
Terje J. Hanssen <<a
href="mailto:terjejhanssen@gmail.com" target="_blank"
rel="noreferrer" moz-do-not-send="true"
class="moz-txt-link-freetext">terjejhanssen@gmail.com</a>>:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div> <br>
<br>
<div>Den 26.12.2022 23:01, skrev Andrew Randrianasulu:<br>
</div>
<blockquote type="cite">
<div dir="auto"><a
href="https://superuser.com/questions/879216/how-to-determine-whether-blu-ray-disc-is-htl-or-lth"
rel="noreferrer noreferrer noreferrer noreferrer
noreferrer" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://superuser.com/questions/879216/how-to-determine-whether-blu-ray-disc-is-htl-or-lth</a>
<div dir="auto"><br>
</div>
<div dir="auto">lists two methods one with cdrecord
+ internet, another one using imgburn</div>
<div dir="auto"><br>
</div>
<div dir="auto">===</div>
<div dir="auto">
<p>Here's the best way I've found:</p>
<ol>
<li style="margin:0px
0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;font-size:16.2163px;vertical-align:baseline">
<p
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline">Determine
the manufacturer code and media type of the
media. On Linux, I used <a
href="http://cdrtools.sourceforge.net/private/cdrecord.html"
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;font-size:15px;vertical-align:baseline"
rel="noreferrer noreferrer noreferrer
noreferrer" target="_blank"
moz-do-not-send="true"><code style="margin:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;vertical-align:baseline;white-space:pre-wrap">cdrecord</code></a> <code style="margin:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;vertical-align:baseline;white-space:pre-wrap">dev=XXX -atip | grep -i 'manufacturer\|media type'</code>,
where <code style="margin:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;vertical-align:baseline;white-space:pre-wrap">XXX</code> is
the code for the Blu-ray burner as listed
by <code style="margin:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;vertical-align:baseline;white-space:pre-wrap">cdrecord -scanbus</code>.</p>
</li>
</ol>
</div>
</div>
</blockquote>
<br>
<font face="Courier New, Courier, monospace">This give
me an opportunity to discuss certain reported issues
with access privilegies from K3b/Cdrecord.<br>
<br>
I have also reported this as a possible K3b build bug
to openSUSE bugzilla a couple of weeks ago<br>
<a
href="https://bugzilla.opensuse.org/show_bug.cgi?id=1206384"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true" class="moz-txt-link-freetext">https://bugzilla.opensuse.org/show_bug.cgi?id=1206384</a><br>
<br>
Suggestions are welcome how to troubleshoot and get
rid of them, as they can be part of or main cause to
my burning/disc problem. !?<br>
<br>
<br>
</font>
<blockquote><font face="Courier New, Courier, monospace">cdrecord
-scanbus</font><br>
<font face="Courier New, Courier, monospace">Cdrecord-ProDVD-ProBD-Clone
3.02a09 (x86_64-unknown-linux-gnu) Copyright (C)
1995-2016 Joerg Schilling</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file read' privileges. You will not be
able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file write' privileges. You will not
be able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'device' privileges. You may not be
able to send all needed SCSI commands, this my cause
various unexplainable problems.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'network' privileges. You will not be
able to do remote SCSI.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
No access. Cannot open '/dev/sg0'. Cannot open or
use SCSI driver.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
For possible targets try 'cdrecord -scanbus'. Make
sure you are root.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
For possible transport specifiers try 'cdrecord
dev=help'.</font><br>
<br>
<font face="Courier New, Courier, monospace">cdrecord
dev=/dev/sr0 -atip | grep -i 'manufacturer\|media
type'</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file read' privileges. You will not be
able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file write' privileges. You will not
be able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'device' privileges. You may not be
able to send all needed SCSI commands, this my cause
various unexplainable problems.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'network' privileges. You will not be
able to do remote SCSI.</font><br>
<font face="Courier New, Courier, monospace">scsidev:
'/dev/sr0'</font><br>
<font face="Courier New, Courier, monospace">devname:
'/dev/sr0'</font><br>
<font face="Courier New, Courier, monospace">scsibus:
-2 target: -2 lun: -2</font><br>
<font face="Courier New, Courier, monospace">Warning:
Open by 'devname' is unintentional and not
supported.</font><br>
<font face="Courier New, Courier, monospace">Linux sg
driver version: 3.5.27</font><br>
<font face="Courier New, Courier, monospace">Manufacturer:
'VERBAT'</font><br>
<font face="Courier New, Courier, monospace">Media
type: 'IM1'</font><br>
</blockquote>
</div>
</blockquote>
</div>
</div>
<div dir="auto"><a
href="https://github.com/netblue30/firejail/issues/2989"
target="_blank" rel="noreferrer" moz-do-not-send="true"
class="moz-txt-link-freetext">https://github.com/netblue30/firejail/issues/2989</a><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">I read somewhere in cdrtools documentation
cdrecord may use linux capabilities ...</div>
<div dir="auto"><br>
</div>
<div dir="auto">this issues suggest using</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<pre style="font-family:ui-monospace,sfmono-regular,"sf mono",menlo,consolas,"liberation mono",monospace;font-size:11.9px;margin-top:0px;margin-bottom:16px;padding:16px;line-height:1.45;border-radius:6px;color:rgb(36,41,47)"><code style="font-family:ui-monospace,sfmono-regular,"sf mono",menlo,consolas,"liberation mono",monospace;padding:0px;margin:0px;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;border-radius:6px;border:0px;display:inline;line-height:inherit">sudo getcap /usr/bin/cdrecord</code></pre>
</div>
<div dir="auto">So, I guess there should be setcap too?</div>
</div>
</blockquote>
<br>
I admit I have never heard about or used getcap and setcap before,
but found them in the Leap package 'libcap-progs'.<br>
I ran setcap as you suggested in your additional post 'cdrecord as
user'.<br>
The "<font face="Courier New, Courier, monospace">Insufficient
'xxxx' privileges disappeared, but sorry not the failed burning.<br>
<br>
Five years ago I burned several labeled "LongLife" Verbatim BD-R
DL/50 Gb discs with the same LG burner and previous K3b/Cdrecord.
When these discs became EOL, I tried corresponding 'Mediarange'
discs. These failed to burn and Cdrecord returned an unknown
error (code 254). This error 254 is posted on some forums with
different solutions. <br>
Some said burning could be broken by some unfrienly programs.
Regarding Mediarange, Joerg Schilling suggested to upgrade the
burner's firmware, but still no burning success with those
Mediarange discs anymore.<br>
<br>
My current Verbatim BD-R/RE DL/50 Gb discs are labeled "Hard Coat"
- and respectively "M+A+B+L" resistant (layer for archival life),
and "SERL" for up to 1000 times rewriteable. But LG/K3b don't like
them and fails with error code 254. What is rather confusing, I
have happend to successful burn a couple of these BD-RE discs,
while most have failed after several trial.<br>
</font>
<ul>
<li><font face="Courier New, Courier, monospace">Typical output in
the burning window is:</font></li>
<li><font face="Courier New, Courier, monospace">SAO writing at 2x
speed (default SAO and 3x selected)</font></li>
<li><font face="Courier New, Courier, monospace">Cdrecord returned
an unknown error (code 254)</font></li>
<li><font face="Courier New, Courier, monospace">Sometimes TAO
writing solves this issue (I have not tried that)</font></li>
<li><font face="Courier New, Courier, monospace">(Another error </font>"Cannot
fixate disk" has also appeared)<br>
</li>
</ul>
<font face="Courier New, Courier, monospace"><br>
I have currently had some more success to complete burn some
unbranded BD-RE/DL discs from Slowmoose, with less failing. The
remarkable is that the disc burn is so unstable and
inconsistently, as it may fail on the first two attemps before it
succeed on the third. Some burns may fail immediately, other not
so fun after 1 or 1.5 hour(s), or ca. 1/3-1/2 of total burning
time for 40 Gb)<br>
<br>
I maybe read somewhere that som other burning programs could
"leave disc without "closing session" (or similar?), and Cdrecord
next could run into issue to rewrite those discs afterwards. I
know I have tried also 'dd' on some discs.<br>
<br>
Two of more or less related links<br>
</font><font face="Courier New, Courier, monospace"><font
face="Courier New, Courier, monospace"><a class="moz-txt-link-freetext" href="https://wiki.archlinux.org/title/Optical_disc_drive">https://wiki.archlinux.org/title/Optical_disc_drive</a><br>
</font><a class="moz-txt-link-freetext" href="https://bbs.archlinux.org/viewtopic.php?id=58884">https://bbs.archlinux.org/viewtopic.php?id=58884</a><br>
<br>
<br>
</font><br>
<br>
<blockquote type="cite"
cite="mid:CA+rFky6eJKuJ1gB+8YRZQXJ2i0ViwpgrKF4+XgabiebdDUEVUw@mail.gmail.com">
<div dir="auto">
<div dir="auto">
<div class="gmail_quote">
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div><font face="Courier New, Courier, monospace"><br>
Just now K3b/Cdrecord seems to not even write to more
BD-RE DL discs :(<br>
<br>
The above messages are also part of the current
debugging output from K3b included here (sorry for the
length):<br>
<br>
</font>
<blockquote><font face="Courier New, Courier, monospace">Devices</font><br>
<font face="Courier New, Courier, monospace">-----------------------</font><br>
<font face="Courier New, Courier, monospace">HL-DT-ST
BD-RE BH10LS30 1.02 (/dev/sr0, CD-R, CD-RW, CD-ROM,
DVD-ROM, DVD-R, DVD-RW, DVD-R DL, BD-ROM, BD-R,
BD-RE, DVD+R, DVD+RW, DVD+R DL) [DVD-ROM, DVD-R
Sequential, DVD-R Dual Layer Sequential, DVD-R Dual
Layer Jump, DVD-RAM, DVD-RW Restricted Overwrite,
DVD-RW Sequential, DVD+RW, DVD+R, DVD+R Dual Layer,
CD-ROM, CD-R, CD-RW, BD-ROM, BD-R Sequential (SRM),
BD-R Random (RRM), BD-RE] [SAO, TAO, RAW, SAO/R96P,
SAO/R96R, RAW/R16, RAW/R96P, RAW/R96R, Restricted
Overwrite, Layer Jump, Random Recording, Sequential
Recording, Sequential Recording + POW] [%7]</font><br>
<br>
<font face="Courier New, Courier, monospace">System</font><br>
<font face="Courier New, Courier, monospace">-----------------------</font><br>
<font face="Courier New, Courier, monospace">K3b
Version: 21.12.3</font><br>
<font face="Courier New, Courier, monospace">KDE
Version: 5.90.0</font><br>
<font face="Courier New, Courier, monospace">Qt
Version: 5.15.2</font><br>
<font face="Courier New, Courier, monospace">Kernel:
5.14.21-150400.24.38-default</font><br>
<br>
<font face="Courier New, Courier, monospace">Used
versions</font><br>
<font face="Courier New, Courier, monospace">-----------------------</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
3.2a09</font><br>
<br>
<font face="Courier New, Courier, monospace">cdrecord</font><br>
<font face="Courier New, Courier, monospace">-----------------------</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file read' privileges. You will not be
able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'file write' privileges. You will not
be able to open all needed devices.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'device' privileges. You may not be
able to send all needed SCSI commands, this my cause
various unexplainable problems.</font><br>
<font face="Courier New, Courier, monospace">cdrecord:
Insufficient 'network' privileges. You will not be
able to do remote SCSI.</font><br>
<font face="Courier New, Courier, monospace">scsidev:
'/dev/sr0'</font><br>
<font face="Courier New, Courier, monospace">devname:
'/dev/sr0'</font><br>
<font face="Courier New, Courier, monospace">scsibus:
-2 target: -2 lun: -2</font><br>
<font face="Courier New, Courier, monospace">Warning:
Open by 'devname' is unintentional and not
supported.</font><br>
<font face="Courier New, Courier, monospace">Linux sg
driver version: 3.5.27</font><br>
<font face="Courier New, Courier, monospace">SCSI
buffer size: 64512</font><br>
<font face="Courier New, Courier, monospace">Cdrecord-ProDVD-ProBD-Clone
3.02a09 (x86_64-unknown-linux-gnu) Copyright (C)
1995-2016 Joerg Schilling</font><br>
<font face="Courier New, Courier, monospace">TOC Type:
1 = CD-ROM</font><br>
<font face="Courier New, Courier, monospace">Using
libscg version 'schily-0.9'.</font><br>
<font face="Courier New, Courier, monospace">Driveropts:
'burnfree'</font><br>
<font face="Courier New, Courier, monospace">atapi: 1</font><br>
<font face="Courier New, Courier, monospace">Device
type : Removable CD-ROM</font><br>
<font face="Courier New, Courier, monospace">Version
: 5</font><br>
<font face="Courier New, Courier, monospace">Response
Format: 2</font><br>
<font face="Courier New, Courier, monospace">Capabilities
: </font><br>
<font face="Courier New, Courier, monospace">Vendor_info
: 'HL-DT-ST'</font><br>
<font face="Courier New, Courier, monospace">Identifikation
: 'BD-RE BH10LS30 '</font><br>
<font face="Courier New, Courier, monospace">Revision
: '1.02'</font><br>
<font face="Courier New, Courier, monospace">Device
seems to be: Generic mmc2 DVD-R/DVD-RW/DVD-RAM.</font><br>
<font face="Courier New, Courier, monospace">Current:
BD-RE</font><br>
<font face="Courier New, Courier, monospace">Profile:
BD-ROM </font><br>
<font face="Courier New, Courier, monospace">Profile:
BD-R sequential recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
BD-R random recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
BD-RE (current)</font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-RAM </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-R sequential recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-R/DL sequential recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-R/DL layer jump recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-RW sequential recording </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-RW restricted overwrite </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD+RW </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD+R </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD+R/DL </font><br>
<font face="Courier New, Courier, monospace">Profile:
DVD-ROM </font><br>
<font face="Courier New, Courier, monospace">Profile:
CD-R </font><br>
<font face="Courier New, Courier, monospace">Profile:
CD-RW </font><br>
<font face="Courier New, Courier, monospace">Profile:
CD-ROM </font><br>
<font face="Courier New, Courier, monospace">Profile:
Removable Disk (current)</font><br>
<font face="Courier New, Courier, monospace">Using
generic SCSI-3/mmc-3 BD-RE driver (mmc_bdre).</font><br>
<font face="Courier New, Courier, monospace">Driver
flags : NO-CD BD MMC-3 BURNFREE </font><br>
<font face="Courier New, Courier, monospace">Supported
modes: PACKET SAO LAYER_JUMP</font><br>
<font face="Courier New, Courier, monospace">Drive buf
size : 2031616 = 1984 KB</font><br>
<font face="Courier New, Courier, monospace">Drive
pbuf size: 3850240 = 3760 KB</font><br>
<font face="Courier New, Courier, monospace">Drive DMA
Speed: 17771 kB/s 100x CD 12x DVD 3x BD</font><br>
<font face="Courier New, Courier, monospace">FIFO
size : 4194304 = 4096 KB</font><br>
<font face="Courier New, Courier, monospace">Track 01:
data 39383 MB </font><br>
<font face="Courier New, Courier, monospace">Total
size: 39383 MB = 20164288 sectors</font><br>
<font face="Courier New, Courier, monospace">Current
Secsize: 0</font><br>
<font face="Courier New, Courier, monospace">
Capacity Blklen/Sparesz. Format-type Type</font><br>
<font face="Courier New, Courier, monospace">
24438784 36864 0x00 Unformated
or Blank Media</font><br>
<font face="Courier New, Courier, monospace">
23652352 24576 0x00 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">
23259136 2048 0x01 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">
23652352 24576 0x30 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">
23259136 36864 0x30 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">
24307712 4096 0x30 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">
24438784 2048 0x31 Reserved (0)</font><br>
<font face="Courier New, Courier, monospace">Format
was needed.</font><br>
<font face="Courier New, Courier, monospace">Starting
to write CD/DVD/BD at speed 2 in real FORMAT mode
for single session.</font><br>
<font face="Courier New, Courier, monospace">Last
chance to quit, starting real write in 3 seconds.</font><br>
<font face="Courier New, Courier, monospace"> 2
seconds.</font><br>
<font face="Courier New, Courier, monospace"> 1
seconds.</font><br>
<font face="Courier New, Courier, monospace"> 0
seconds. Operation starts.</font><br>
<font face="Courier New, Courier, monospace">Formatting
media</font><br>
<font face="Courier New, Courier, monospace">operation
0% done</font><br>
<font face="Courier New, Courier, monospace">=== last
message repeated 29 times. ===</font><br>
<font face="Courier New, Courier, monospace">Formatting
time: 61.464s (00:01:01.464)</font><br>
<font face="Courier New, Courier, monospace">Condition
not caught: capacity_not_set.</font><br>
<br>
<font face="Courier New, Courier, monospace">cdrecord
command:</font><br>
<font face="Courier New, Courier, monospace">-----------------------</font><br>
<font face="Courier New, Courier, monospace">/usr/bin/cdrecord
-v gracetime=2 dev=/dev/sr0 speed=2 -sao
driveropts=burnfree -data -tsize=20164288s -</font><br>
</blockquote>
<br>
<br>
<blockquote type="cite">
<div dir="auto">
<div dir="auto">
<ol>
<li
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;font-size:16.2163px;vertical-align:baseline">
<p
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline">Look
up the manufacturer and media type codes at <a
href="http://www.blu-raydisc.info/licensee-list/discmanuid-licenseelist.php"
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline"
rel="noreferrer noreferrer noreferrer
noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">http://www.blu-raydisc.info/licensee-list/discmanuid-licenseelist.php</a> .
The table on that site identifies "recording
type" (i.e. HTL or LTH) and also write speed
from these codes.</p>
</li>
</ol>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">=== quote
end====</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px"><br>
</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">site worked when
I clicked on link.</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px"><br>
</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">Apparently LTH
should be marked due to their bad
compatibility with earlier drives, but ....
reality is less stellar :(</span></font></div>
</div>
</div>
</blockquote>
<br>
<font color="#232629"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe ui,
liberation sans, sans-serif">A quick look in the
tables it seemed for me that all 50GB BD-R/RE DL
discs use "HTL" recording type.<br>
<br>
<br>
</font></font>
<blockquote type="cite">
<div dir="auto">
<div dir="auto">
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px"><br>
</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">and in imgburn</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px"><br>
</span></font></div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">====</span></font></div>
<div dir="auto">
<p>With image burning software. <a
href="http://www.imgburn.com/"
style="margin:0px;padding:0px;border:0px;font-style:inherit;font-variant:inherit;font-weight:inherit;line-height:inherit;font-family:inherit;vertical-align:baseline"
rel="noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true">ImgBurn</a> for
instance.</p>
<p>In Imgburn main menu just click on anything
writing related. For example, "Write image
file to disc"</p>
<p>Now a new window pops up</p>
<p>Please check that you have the correct burner
selected in the left hand side, if you have
more than one disc burner.</p>
<p>Scroll down on the right pane, and you find
the info under "Recorded Mark Polarity"</p>
</div>
<div dir="auto"><font face="-apple-system,
blinkmacsystemfont, segoe ui adjusted, segoe
ui, liberation sans, sans-serif"
color="#232629"><span
style="font-size:16.2163px">====</span></font></div>
</div>
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<div dir="auto"><br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">HTL is apparently more durable....</div>
<div dir="auto"><br>
</div>
<div dir="auto">Terje posted link to Canadian site
and I did little search on my own</div>
<div dir="auto"><br>
</div>
<div dir="auto"><a
href="https://www.pcworld.com/article/423607/hard-core-data-preservation-the-best-media-and-methods-for-archiving-your-data.html"
rel="noreferrer noreferrer" target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">https://www.pcworld.com/article/423607/hard-core-data-preservation-the-best-media-and-methods-for-archiving-your-data.html</a><br>
</div>
<div dir="auto">(from 2016)</div>
<div dir="auto"><br>
</div>
<div dir="auto">to be honest I newer heard about
HTL vs LTH when it comes to BDs....</div>
<div dir="auto"><br>
</div>
<div dir="auto">I found some ASUS drive in my
city, so *may be* I'll have some means to test
real disks in new year.</div>
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</div>
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</div>
</div>
</div>
</blockquote>
<br>
Many articles recommend to keep three types of media for
archiving stored on at least two locations to spread the
risk.<br>
For camcorded video this envolves for me <br>
<ol>
<li>keep the source media (tape cassettes)</li>
<li>a digitized version on portable expansion USB3
discs</li>
<li>and on optical Blu-ray data discs and playable
BD-video discs. </li>
</ol>
<br>
<br>
</div>
</blockquote>
</div>
</div>
</div>
</blockquote>
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