Re: Trouble burning DVD

On Mon, 27 Feb 2006 16:59:35 -0500, General Schvantzkoph staggered into
the Black Sun and said:
On Mon, 27 Feb 2006 15:50:12 -0600, Dances With Crows wrote:
General Schvantzkoph wrote:
Why would I want to use udf? That's for video, I'm just trying to
backup some data.
You know that ISO9660 stores file sizes in signed 32-bit ints, right?
The size of the ISO that I was trying to write is 1.3G so I don't
think my problem is due to a 32 bit limit.

The signed32 limits all individual files on an ISO9660 fs to 2G. This
can be a big problem for some applications, and it's one of the reasons
why UDF was introduced. UDF stores file sizes in a 64-bit int, which
should be enough for the next 20 years.

Besides aren't the pointers all 2K sector pointers not byte pointers?
2G * 2K is 4Tbytes which won't be a problem for a long time

I think you're forgetting that a filesystem must store the exact size of
a file in bytes somewhere. If you only store the number of N-byte
sectors a file takes, any attempt to read() an N+1-byte file will return
2*N bytes, which is Wrong. I suppose you could store 2 numbers for each
file, (number of sectors) and (number of bytes used in last sector), but
that's kind of inelegant. And it makes stat() take more math than just
storing the size in bytes.

I'm just trying to burn a DVD that can be read with FC4, I don't care
if Windows can read it.

Good to hear that growisofs worked for you in the other branch of this
thread. I forgot to suggest it; stupid me.

--
Matt G|There is no Darkness in Eternity/But only Light too dim for us to see
Brainbench MVP for Linux Admin / mail: TRAP + SPAN don't belong
http://www.brainbench.com / "He is a rhythmic movement of the
-----------------------------/ penguins, is Tux." --MegaHAL
.

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