Hello, first of all, i would like to thank you for your help, even if
it doesn't work, i've learnt a bit about devices assumed as SCSI.

E. Charters wrote :
> Just guessing but you may need to read the CD-Writing-HOWTO
> very carefully where it applies to ide-scsi modules
> such as sg and sr_mod and ide-scsi and their order of loading.

Mmh i'm probably ill, but can't find it ...

Also, there is a thing that looks very strange in dmesg's ouput, it's
the 3 lines.. doesn't it matter ?

> kmod: failed to exec /sbin/modprobe -s -k scsi_hostadapter, errno = 2

According to ksudjsd i tried to burn cd as root, but the result is the
same, so this time, here is the output of the command (i burn using
xcdroast, sorry but i'm not used to burn in command line) :

Calling: /usr/lib/xcdroast-0.98/bin/xcdrwrap CDRECORD dev= "0,0,0"
gracetime=2 fs=4096k -v -useinfo speed=4 -eject -multi -pad -data
"/tmp/luc-01.iso" ...

cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive
dependent defaults.
cdrecord: Continuing in 5 seconds...
scsidev: '0,0,0'
scsibus: 0 target: 0 lun: 0
Linux sg driver version: 3.1.25
SCSI buffer size: 64512
Cdrecord-Clone 2.01 (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jцrg
Schilling
TOC Type: 1 = CD-ROM
Using libscg version 'schily-0.8'.
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 1
Vendor_info : 'CREATIVE'
Identifikation : 'CD-RW RW4424E '
Revision : '1.12'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC SWABAUDIO
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P
RAW/R96R
Drive buf size : 1904640 = 1860 KB
FIFO size : 4194304 = 4096 KB
pregap1: -1
Track 01: data 4 MB padsize: 30 KB
Total size: 5 MB (00:32.12) = 2409 sectors
Lout start: 5 MB (00:34/09) = 2409 sectors
Current Secsize: 2048
ATIP start of lead in: -150 (00:00/00)
Disk type: unknown dye (reserved id code)
Manuf. index: -1
Manufacturer: unknown (not in table)
Starting to write CD/DVD at speed 2 in real TAO mode for multi session.
Waiting for reader process to fill input buffer ...
input buffer ready.
Performing OPC...
cdrecord: Input/output error. send opc: scsi sendcmd: no error
CDB: 54 01 00 00 00 00 00 00 00 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 02 00 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x02 Qual 0x00 (no seek complete) Fru 0x0
Sense flags: Blk 0 (not valid)
cmd finished after 23.591s timeout 60s
cdrecord: OPC failed.
Writing time: 24.902s
cdrecord: fifo had 64 puts and 0 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.

Once more, thank you all