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From: Paul B Mahol <onemda@gmail.com>
To: Tim Kientzle <kientzle@freebsd.org>
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Subject: Re: ISO9660 4GB directory structures boundary limit and growisofs
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On 4/17/10, Paul B Mahol <onemda@gmail.com> wrote:
> On Sat, Apr 17, 2010 at 4:31 PM, Tim Kientzle <kientzle@freebsd.org> wrote:
>> Paul B Mahol wrote:
>>>
>>> It is apparently not possible to make use of -use-the-force-luke=4gms
>>> on FreeBSD when appending new session after 4GB. Mounted disk
>>> afterwards  show nothing.
>>>
>>> Should we allow it like linux does?
>>
>> Are you claiming there is a problem when FreeBSD reads such
>> images or a problem with creating such images?  What
>> programs are you using?
>
> I burn flac files in multiple sessions, each session have separate
> directory, on DVD+R DL MKM/003
> After I used 4gms switch mounted fs shows nothing. (but there is >5GB of
> data)
>
> According to growisofs source BD (bluray) dont need this switch at all ...
>
>> This sounds like a pretty unsurprising 32-bit truncation
>> bug:  the filesystem structures in ISO9660 are all sector
>> numbers so 8TB should be the natural limit (4G sectors
>> times 2k bytes/sector).
>
> I did not tested this on FreeBSD amd64 yet.

Update: Linux shows all sessions and Windows 7 shows only first one.