udfinfo: Warning: Second and third Anchor Volume Descriptor Pointer not found

those three AVDP structures requred by avchd format.. 

so, I hope mkudffs from new udftools will fix this at least

for some standard info see sony patent (thankfully expired!):

https://patents.google.com/patent/US8311398


On Saturday, November 27, 2021, Terje J. Hanssen <terjejhanssen@gmail.com> wrote:


Den 27.11.2021 15:36, skrev Andrew Randrianasulu:
"Error: Number of AVDPs less than 2: 1, AVDP at 256
- UDF 2.2.3, 6.10..., 6.13..., 6.14...."

um.. I hope never mkudffs (you need to specify blocksize 2048 for optical media image) in mkudffs 2.x) can correct this..


Sorry, I don't understand what this mean .... ;)

next stop - metadata partition/files (unimplemented currently)

On Saturday, November 27, 2021, Terje J. Hanssen <terjejhanssen@gmail.com <mailto:terjejhanssen@gmail.com>> wrote:



    Den 27.11.2021 14:28, skrev Andrew Randrianasulu:



        On Saturday, November 27, 2021, Terje J. Hanssen
        <terjejhanssen@gmail.com <mailto:terjejhanssen@gmail.com>
        <mailto:terjejhanssen@gmail.com
        <mailto:terjejhanssen@gmail.com>>> wrote:



            Den 27.11.2021 06:27, skrev Andrew Randrianasulu via Cin:

                Can anyone try to test bdwrite's output with this tool:

        https://www.lscdweb.com/registered/udf_verifier.html
        <https://www.lscdweb.com/registered/udf_verifier.html>
                <https://www.lscdweb.com/registered/udf_verifier.html
        <https://www.lscdweb.com/registered/udf_verifier.html>>
                <https://www.lscdweb.com/registered/udf_verifier.html
        <https://www.lscdweb.com/registered/udf_verifier.html>
                <https://www.lscdweb.com/registered/udf_verifier.html
        <https://www.lscdweb.com/registered/udf_verifier.html>>>

                for Netbsd created 2.50 udf on hard drive file it requires
                -blocksize 512, but for real bluray image blocksize
        must be
                2048 (default)

                $ ./udf_test -blocksize 512 ~/udfimg.img > log

                there is linux (386) binary, but of course I compiled
        it anew,
                on termux. no scsi support, but othervise seems to work


            Tested my currently written discs:

            DVD-R:
            ./udf_test /dev/sr0 | grep "block size"
              block size        : 2048
              block size        : 2048
              block size        : 2048

            DVD+RW:
            ./udf_test /dev/sr0 | grep "block size"
              block size        : 2048
              block size        : 2048
              block size        : 2048


        cool, whole log quite verbose so I recommend to save it via
        '>' redirection to file.. (it prints summary at the end)


    Attach udf_test_log_DVD-R_growiso and udf_test_log_DVD+RW_dd


            ========

            udfinfo as mentioned in another thread, is not among udftools
            version 1.3 availabel on Leap 15.3. Tried to install
        udftools 2.3
            packaged for Tumbleweed, but it required a newer glibc. Will
            therefor update my Tumbleweed (dualboot) and install it there.


        ok, good luck with update!


============

I add the result of udfinfo here as I expect it is more related in this thread:

DVD-R
udfinfo /dev/sr0
udfinfo: Warning: Device '/dev/sr0' is busy, udfinfo may report bogus information
udfinfo: Warning: Second and third Anchor Volume Descriptor Pointer not found

filename=/dev/sr0
label=LinuxUDF
uuid=619ecc94e14e5d10
lvid=LinuxUDF
vid=LinuxUDF
vsid=LinuxUDF
fsid=LinuxUDF
fullvsid=619ecc94e14e5d10LinuxUDF
owner=Linux mkudffs 1.3
organization=Linux udftools 1.3
contact=https://github.com/pali/udftools/
appid=*Linux mkudffs
impid=*Linux UDFFS
winserialnum=0x3f150044
blocksize=2048
blocks=25712
usedblocks=21649
freeblocks=3520
behindblocks=13
numfiles=9
numdirs=24
udfrev=2.01
udfwriterev=2.01
integrity=closed
accesstype=overwritable
softwriteprotect=no
hardwriteprotect=no
start=16, blocks=3, type=VRS
start=256, blocks=1, type=ANCHOR
start=257, blocks=16, type=MVDS
start=273, blocks=1, type=LVID
start=274, blocks=25169, type=PSPACE
start=25683, blocks=16, type=RVDS

---------

DVD+RW
udfinfo /dev/sr0
udfinfo: Warning: Device '/dev/sr0' is busy, udfinfo may report bogus information
udfinfo: Warning: Second and third Anchor Volume Descriptor Pointer not found

filename=/dev/sr0
label=LinuxUDF
uuid=61a0197edb0cfbac
lvid=LinuxUDF
vid=LinuxUDF
vsid=LinuxUDF
fsid=LinuxUDF
fullvsid=61a0197edb0cfbacLinuxUDF
owner=Linux mkudffs 1.3
organization=Linux udftools 1.3
contact=https://github.com/pali/udftools/
appid=*Linux mkudffs
impid=*Linux UDFFS
winserialnum=0x23325411
blocksize=2048
blocks=2295104
usedblocks=21649
freeblocks=3520
behindblocks=2269405
numfiles=9
numdirs=24
udfrev=2.01
udfwriterev=2.01
lastblock=2295104
integrity=opened
accesstype=overwritable
softwriteprotect=no
hardwriteprotect=no
start=16, blocks=3, type=VRS
start=256, blocks=1, type=ANCHOR
start=257, blocks=16, type=MVDS
start=273, blocks=1, type=LVID
start=274, blocks=25169, type=PSPACE
start=25683, blocks=16, type=RVDS
----------

Regarding the warnings, I think I wrote I had root access when I created the images and burned the discs.
I didn't use any extra mount/umount from terminal - the discs was also recognized by the Nautilus I think, ref. the manual
https://cinelerra-gg.org/download/CinelerraGG_Manual/Blu_ray_Workaround_Mount_Um.html


Terje J. H