[expert] Multisession cd writing.

[=?x-unknown?q?Pe=F1a_Arellano_Fabian_Erasmo?=]

        Hello, 

        I use Linux Mandrake version 7.2 in a computer which has the i810
chipset and 
a HP CD writer 9150 (9100 series). The cd writer was already installed by
the time I 
installed Linux.
        The problem is that I have't been able to write more than two
sessions in a
disc. I have already read the CD-Writing HOWTO and the README.multi file
distributed
with the cdrecord program. No error message appears at any of the steps of
creating
the iso image with mkisofs and recording into disc with cdrecord. The
third session
simply doesn't appears listed after typing

[promt]$ ls /mnt/cdrom2
file_name_first_session         file_name_second_session

        The first time I tried to append a third session, a Windows
machine was able to 
see the third file added to the disc, but Linux never did. In the
following attempts
neither Windows nor Linux were able to see it.
        cdrecord seems to write it fine, it even can retreive the first
block number in
the first track of the third session and the next writable address of the
following 
unwritten session.

[promt]$ cdrecord -scanbus
Cdrecord 1.9 (i586-mandrake-linux-gnu) Copyright (C) 1995-2000 Jrg
Schilling
Linux sg driver version: 2.1.39
Using libscg version 'schily-0.1'
scsibus0:
0,0,0   0) 'HP      ' 'CD-Writer+ 9100b' '1.06' Removable CD-ROM
0,1,0   1) *
0,2,0   2) *
0,3,0   3) *
0,4,0   4) *
0,5,0   5) *
0,6,0   6) *
0,7,0   7) *

[promt]$ ls
file_name
[promt]$ NEXT_TRACK=`cdrecord -msinfo dev=0,0,0`
[promt]$ mkisofs -r -J -o image_name -C $NEXT_TRACK -M /dev/scd0 file_name
[promt]$ ls
image_name      file_name
[promt]$ cdrecord -v speed=2 dev=0,0,0 -data -multi image_name

        Any idea of what could be happening? Thanks in advace.


        Fabian Penha.