<div dir="auto"><div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">пн, 12 дек. 2022 г., 03:04 Terje J. Hanssen via Cin <<a href="mailto:cin@lists.cinelerra-gg.org">cin@lists.cinelerra-gg.org</a>>:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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<div><font face="Courier New, Courier,
monospace">Den 11.12.2022 20:08, skrev Andrew Randrianasulu via
Cin:<br>
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Courier, monospace">вс, 11 дек. 2022 г., 21:44 Phyllis
Smith via Cin <<a href="mailto:cin@lists.cinelerra-gg.org" target="_blank" rel="noreferrer">cin@lists.cinelerra-gg.org</a>>:<br>
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<div><font face="Courier New, Courier, monospace"> I
wonder if someone can clarify if UDF version 2.5
or higher really is required for creating and
burning Blu-ray video to VBD-discs<span class="gmail_default" style="font-size:small">
(blu-ray video discs)</span><br>
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<div><font face="Courier New, Courier, monospace"><span class="gmail_default" style="font-size:small">The
latest version of Fedora, i.e. version 36, has
udftools version 2.3 and my laptop with Fedora
32 has udftools version 2.1. Both have been and
continue to work to create blu-ray discs by the
CinGG method.</span> </font></div>
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<div dir="auto"><font face="Courier New, Courier, monospace">well,
while standard demand udf 2.5 - I guess most (newer) players
relaxed on that...</font></div>
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My Samsung UBD-K8500 4K UHD Blu-ray Player is a 2016 model, so it
looks so. The spec sheet doesn't mention UDF version and is not
very detailed<br>
<a href="https://image-us.samsung.com/SamsungUS/pim/migration/doc/ubd-k8500-za_DAV_UBD_K8500_SpecSheet_01.04.16.pdf" target="_blank" rel="noreferrer">https://image-us.samsung.com/SamsungUS/pim/migration/doc/ubd-k8500-za_DAV_UBD_K8500_SpecSheet_01.04.16.pdf</a><br>
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<div dir="auto"><font face="Courier New, Courier, monospace">because
while mkudffs can make udf 2.5 image/skeleton there is no
simple way to populate this filesystem with files under
Linux!</font></div>
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<div dir="auto"><font face="Courier New, Courier, monospace">Only
netbsd kernel can write udf 2.5 disks/disk images, and for
most bugfixed code you need unreleased yet netbsd 10.</font></div>
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<div dir="auto"><font face="Courier New, Courier, monospace">I
extracted few utilites from netbsd tree (because 5gb of
NetBSD sources was too much for my puny tablet)</font></div>
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<div dir="auto"><font face="Courier New, Courier, monospace"><a href="https://github.com/Randrianasulu/makefs_termux" target="_blank" rel="noreferrer">https://github.com/Randrianasulu/makefs_termux</a><br>
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<div dir="auto"><font face="Courier New, Courier, monospace">this
one should create _populated_ image, just be sure to set
both min and max udf version to 2.5 and block size suitable
for optical media. (2048)</font></div>
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<div dir="auto"><font face="Courier New, Courier, monospace">Linux
kernel even most latest git still stuck at 2.01 for writing
(bdwrite works by utilizing linux kernel udf write support)</font></div>
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<font face="Courier New, Courier, monospace">The mkudffs (and
mkfs.udf in udftools) man page say it is used to create a UDF
filesystem on a device (usually a disk). <br>
Is it a fair understanding that the mkudffs command we use first,
creates the udfs file system itself based on the kernel support,
which bdwrite next write the udfs image upon?<br></font></div></blockquote></div></div><div dir="auto"><br></div><div dir="auto"><br></div><div dir="auto">mkudffs by itself should work without kernel-level support, just there is no way (one I know) to populate this filesystem if kernel udf module does not support writing or missed.</div><div dir="auto"><br></div><div dir="auto">in theory there was udfclient, but I lost myself quickly in its cmd line interface, and back in time ( ~year or so ago) it was not working with 2.5 images for writing anyway ....</div><div dir="auto"><br></div><div dir="auto">in theory you can use bdwrite over mounted ext4 image (say) and then use populated tree as source for makefs ....</div><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">
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