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  • Location of volume serial number on UDF V2.50 formatted DVD(-RAM)

    From Robert Prins@21:1/5 to All on Fri Jul 8 13:45:05 2022
    Hi all,

    It's (obviously) shown by a "VOL" command, but does anyone here know where to actually find it on the disk? And its format? Four bytes? Four words? Four longints? Trying to use a hex editor (HxD) to find it, but no luck.

    Thanks,

    Robert
    --
    Robert AH Prins
    robert(a)prino(d)org
    The hitchhiking grandfather - https://prino.neocities.org/
    Some REXX code for use on z/OS - https://prino.neocities.org/zOS/zOS-Tools.html

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Kerr-Mudd, John@21:1/5 to Robert Prins on Fri Jul 8 21:51:11 2022
    On Fri, 8 Jul 2022 13:45:05 +0000
    Robert Prins <[email protected]> wrote:

    Hi all,

    It's (obviously) shown by a "VOL" command, but does anyone here know where to actually find it on the disk? And its format? Four bytes? Four words? Four longints? Trying to use a hex editor (HxD) to find it, but no luck.


    Sorry, I didn't read your request properly. please ignore previous mansplaining post.

    Or better still, Frank, don't approve it (and this) for posting.

    --
    Bah, and indeed Humbug.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Kerr-Mudd, John@21:1/5 to Robert Prins on Fri Jul 8 21:48:31 2022
    On Fri, 8 Jul 2022 13:45:05 +0000
    Robert Prins <[email protected]> wrote:

    Hi all,

    It's (obviously) shown by a "VOL" command, but does anyone here know where to actually find it on the disk? And its format? Four bytes? Four words? Four longints? Trying to use a hex editor (HxD) to find it, but no luck.

    It's a (usually Hidden & System & R/O) directory entry, IIRC, with Volume label attribute bit set.

    http://helppc.netcore2k.net/table/directory-format


    --
    Bah, and indeed Humbug.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Frank Kotler@21:1/5 to John on Fri Jul 8 17:53:53 2022
    On 07/08/2022 04:51 PM, Kerr-Mudd, John wrote:

    ,,,
    Or better still, Frank, don't approve it (and this) for posting.


    Possible issue with posting?

    If you are having trouble please retry.

    I can be reached at:
    [email protected]

    Hang in there!

    Best,
    Frank

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Kerr-Mudd, John@21:1/5 to Frank Kotler on Sat Jul 9 11:13:25 2022
    On Fri, 8 Jul 2022 17:53:53 -0400
    Frank Kotler <[email protected]> wrote:

    On 07/08/2022 04:51 PM, Kerr-Mudd, John wrote:

    ,,,
    Or better still, Frank, don't approve it (and this) for posting.


    Possible issue with posting?

    No, the problem was me shooting my mouth off without looking at the actual question.
    And now it's out there for all to see! Ah well, cestlavvy, as they say, erm somewhere abroad.


    If you are having trouble please retry.

    I can be reached at:
    [email protected]

    Hang in there!






    --
    Bah, and indeed Humbug.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Frank Kotler@21:1/5 to John on Sat Jul 9 07:21:19 2022
    On 07/09/2022 06:13 AM, Kerr-Mudd, John wrote:
    On Fri, 8 Jul 2022 17:53:53 -0400
    Frank Kotler <[email protected]> wrote:

    On 07/08/2022 04:51 PM, Kerr-Mudd, John wrote:

    ,,,
    Or better still, Frank, don't approve it (and this) for posting.


    Possible issue with posting?

    No, the problem was me shooting my mouth off without looking at the actual question.
    And now it's out there for all to see! Ah well, cestlavvy, as they say, erm somewhere abroad.


    French. C'est la vie. That's life.

    I replied - tried to - saying that you guys aew on thw "auto-approve"
    list and I don't have a chance to not approve your posts. I also
    suggested that Ralf Brown's Interrupt List might have an answer to
    Robert's question. Haven't looked to see if that's true. That post did
    not appear. I think I botched sending it.

    There was one issue that Eternal-September, who I post messages with an "approved" header with, had changed their IP. My little moderation
    helper program has no DNS capability. I resort to doing "ping
    example.com" and hard coding the IP into my program. It is in assemb;y language, so it is on topic. Maybe we can discuss DNS someday... This
    delayed Robert's post slightly, but I got it "fixed".
    ..

    Now. Eternal-September is claiming "duplicate post not sent" on
    everything, but is posting stuff first(?). I think. I don't know why.
    Might be me, might be them. Work in progress.


    If you are having trouble please retry.

    I can be reached at:
    [email protected]

    Hang in there!


    We still haven't found that volume label...

    Best,
    Frank

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From Kerr-Mudd, John@21:1/5 to Frank Kotler on Sat Jul 9 17:38:03 2022
    On Sat, 9 Jul 2022 07:21:19 -0400
    Frank Kotler <[email protected]> wrote:

    On 07/09/2022 06:13 AM, Kerr-Mudd, John wrote:
    On Fri, 8 Jul 2022 17:53:53 -0400
    Frank Kotler <[email protected]> wrote:

    On 07/08/2022 04:51 PM, Kerr-Mudd, John wrote:

    ,,,
    Or better still, Frank, don't approve it (and this) for posting.


    Possible issue with posting?

    No, the problem was me shooting my mouth off without looking at the actual question.
    And now it's out there for all to see! Ah well, cestlavvy, as they say, erm somewhere abroad.


    French. C'est la vie. That's life.

    Yes. But I should have posted "sestlavvy", as a rough transliteration.


    I replied - tried to - saying that you guys aew on thw "auto-approve"
    list and I don't have a chance to not approve your posts. I also

    Ah that explains it.

    suggested that Ralf Brown's Interrupt List might have an answer to
    Robert's question. Haven't looked to see if that's true. That post did
    not appear. I think I botched sending it.

    There was one issue that Eternal-September, who I post messages with an "approved" header with, had changed their IP. My little moderation
    helper program has no DNS capability. I resort to doing "ping
    example.com" and hard coding the IP into my program. It is in assemb;y language, so it is on topic. Maybe we can discuss DNS someday... This
    delayed Robert's post slightly, but I got it "fixed".
    ..

    Now. Eternal-September is claiming "duplicate post not sent" on
    everything, but is posting stuff first(?). I think. I don't know why.
    Might be me, might be them. Work in progress.


    If you are having trouble please retry.

    I can be reached at:
    [email protected]

    Hang in there!


    We still haven't found that volume label...

    Mr google gave me:

    https://stackoverflow.com/questions/43707425/get-the-serial-number-of-the-volume-udf-cd-dvd-disk

    which implies it isn't stored anywhere; it's a checksum.

    Looks tricky.



    --
    Bah, and indeed Humbug.

    --- SoupGate-Win32 v1.05
    * Origin: fsxNet Usenet Gateway (21:1/5)