What is the maximum file size on a dvd+r ?

[Nikolas Britton]

On 5/28/06, Hans Lambermont <hans at lambermont.dyndns.org> wrote:
> What is the maximum file size on a dvd+r ?
>
> System : 5.4-RELEASE-p6
> Command used : growisofs -Z /dev/cd0 -l -J -r burn/
> In burn/ I have a backup file of size 4166629386 bytes and some smaller
> files. In total 4577410 kB.
>
> growisofs ends normally :
>  99.88% done, estimate finish Fri May 26 23:22:48 2006
> Total translation table size: 0
> Total rockridge attributes bytes: 519
> Total directory bytes: 0
> Path table size(bytes): 10
> Max brk space used d724
> 2287734 extents written (4468 MB)
> builtin_dd: 2287744*2KB out @ average 2.4x1385KBps
> /dev/pass0: flushing cache
> /dev/pass0: closing track
> /dev/pass0: closing session
> # echo $?
> 0
>
> An 'ls -la' of the mounted dvd+r shows :
> ls: backup.bz2: Value too large to be stored in data type
>
> I can read the whole dvd without problems on a non-FreeBSD system. I
> cannot find a limit in GROWISOFS(1m) or MKISOFS(8), but on
> http://unix.derkeiler.com/Mailing-Lists/FreeBSD/questions/2005-12/msg01736.html
> I read about a 2 GB maximum filesize for a file on a dvd. Is this true ?
> If so I think it should be mentioned in GROWISOFS(1m).
>

FreeBSD's implementation is correct, Linux is the one that's wrong,
they decided to embrace and extend the standard. Theirs a 2GB cap per
file on DVDs.


-- 
BSD Podcasts @:
http://bsdtalk.blogspot.com/
http://freebsdforall.blogspot.com/