[Cin] Is UDF 2.5 or higher really required for Blu-ray video and BD burning?
Terje J. Hanssen
terjejhanssen at gmail.com
Mon Dec 12 00:56:12 CET 2022
Den 11.12.2022 20:08, skrev Andrew Randrianasulu via Cin:
> вс, 11 дек. 2022 г., 21:44 Phyllis Smith via Cin
> <cin at lists.cinelerra-gg.org>:
> 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(blu-ray video discs)
> 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.
> well, while standard demand udf 2.5 - I guess most (newer) players
> relaxed on that...
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
> because while mkudffs can make udf 2.5 image/skeleton there is no
> simple way to populate this filesystem with files under Linux!
> Only netbsd kernel can write udf 2.5 disks/disk images, and for most
> bugfixed code you need unreleased yet netbsd 10.
> I extracted few utilites from netbsd tree (because 5gb of NetBSD
> sources was too much for my puny tablet)
> 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.
> Linux kernel even most latest git still stuck at 2.01 for writing
> (bdwrite works by utilizing linux kernel udf write support)
The mkudffs (and mkfs.udf in udftools) man page say it is used to create
a UDF filesystem on a device (usually a disk).
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?
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