K3b has failed twice burning dual layer M-DISC

K3b has produced 1 coaster that failed at 66% and 1 disc that mounts and apparently was written to 99.9%.

Are there any secret steps, secret packages that I’m missing to produce a verified 50 Gb DL BD-R?

I’m archiving zip files, and one of them is 9 Gb, which is why I enabled UDF on the options and also because it’s part of the BD spec.

UDF enabled, Create image file enabled, Verify data enabled, speed 2x (minimum), multisession mode auto.

It is also possible that your hardware is failing.

In the far past, also cheap disks caused issues with failing write. That means you could throw away 100 disks…

Unlikely since it’s a 3 year old Asus Bluray burner and the discs are the gold standard: Verbatim.

ImgBurn running in Wine with XP version setting and using SPTI mode produced a perfect burn, verified by md5 checksum. I think data bluray burning using UDF is just not functional in Linux.

Possibly K3b failure.

Post

zypper se -s udf

Sure:

S  | Name                             | Type    | Version       | Arch   | Repository
---+----------------------------------+---------+---------------+--------+----------------------
   | aws-sdk-java-cloudformation      | package | 1.11.3-11.5   | noarch | Main Repository (OSS)
   | aws-sdk-java-cloudfront          | package | 1.11.3-11.5   | noarch | Main Repository (OSS)
   | cloudflared                      | package | 2024.12.1-1.1 | x86_64 | Main Repository (OSS)
   | libudf0                          | package | 2.2.0-1.1     | x86_64 | Main Repository (OSS)
   | libudf0-32bit                    | package | 2.2.0-1.1     | x86_64 | Main Repository (OSS)
   | ocaml-cudf                       | package | 0.9-2.20      | x86_64 | Main Repository (OSS)
   | ocaml-cudf-devel                 | package | 0.9-2.20      | x86_64 | Main Repository (OSS)
   | python311-certbot-dns-cloudflare | package | 3.0.1-1.2     | noarch | Main Repository (OSS)
   | python311-cloudflare             | package | 2.20.0-1.3    | noarch | Main Repository (OSS)
   | python312-certbot-dns-cloudflare | package | 3.0.1-1.2     | noarch | Main Repository (OSS)
   | python312-cloudflare             | package | 2.20.0-1.3    | noarch | Main Repository (OSS)
   | python313-certbot-dns-cloudflare | package | 3.0.1-1.2     | noarch | Main Repository (OSS)
   | python313-cloudflare             | package | 2.20.0-1.3    | noarch | Main Repository (OSS)
i  | udftools                         | package | 2.3-1.16      | x86_64 | (System Packages)
v  | udftools                         | package | 2.3-1.17      | x86_64 | Main Repository (OSS)

What about installing libudf0 and libudf0-32bit packages?

https://software.opensuse.org/package/libudf0

libudf0

Library for working with Universal Disk Format filesystems

This library is made to read and write UDF filesystems, which are mainly used on DVDs.