How to mount ISO-9660 multi-extents blu-ray disc

[Conrad Meyer]

Oh, great!  I wonder if it would be possible for our cd9660 code to
auto-suggest use of udf when a UDF volume is present — hopefully
avoiding some confusion in the future.

Best,
Conrad

On Fri, Aug 17, 2018 at 7:15 PM, Masachika ISHIZUKA
<ish at amail.plala.or.jp> wrote:
>> In particular it appears that our vget routine needs to check the
>> directory entry flags for the 7th bit (0x80)[1], which "if set, this
>> is not the final directory record for this file" and the remaining
>> records describe the additional extents.  We likely need to modify the
>> read path to support such multi-extent files as well.
>>
>> I guess we also already have an open PR for it, 95222, if you are
>> interested in CC'ing there.
>
> Thank you for reply.
>
> I found that it can be mounted correctly by mount_udf as follow.
>
> freebsd# mount_udf -C UTF-8 /dev/cd0 /cdrom
> freebsd# ls -l /cdrom/test
> total 5242880
> -r--r--r--  1 root  wheel  5368709120 Aug 17 16:58 test5g
>
> I'm verified that 33gb movie file on BD-R DL is accessable correctly.
> --
> Masachika ISHIZUKA
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