On Mon, Apr 19, 2010 at 1:48 PM, Paul B Mahol <onemda_at_gmail.com> wrote: > On 4/17/10, Paul B Mahol <onemda_at_gmail.com> wrote: >> On Sat, Apr 17, 2010 at 4:31 PM, Tim Kientzle <kientzle_at_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. >From the source code of groisofs.c: * - DVD+R Double Layer support; * - -use-the-force-luke=4gms to allow ISO9660 directory structures * to cross 4GB boundary, the option is effective only with DVD+R DL * and for data to be accessible under Linux isofs a kernel patch is * required; So I'm guessing it does something non standard, particularly if windows also refuses to see the data. Cheers TomReceived on Mon Apr 19 2010 - 12:10:41 UTC
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