[Bug 146811] Re: bad burn with Samsung SH-S183L

[Yaniv Kamay]

I did some more tests

********************************* readom failed
***************************************

yaniv at yaniv-desktop:~$ readom dev=/dev/scd0 f=/home/yaniv/Desktop/ubuntu.iso
Read  speed:  7056 kB/s (CD  40x, DVD  5x).
Write speed:  8468 kB/s (CD  48x, DVD  6x).
Capacity: 347290 Blocks = 694580 kBytes = 678 MBytes = 711 prMB
Sectorsize: 2048 Bytes
Copy from SCSI (0,0,0) disk to file '/home/yaniv/Desktop/ubuntu.iso'
end:    347290
Errno: 5 (Input/output error), read_g1 scsi sendcmd: no error
CDB:  28 00 00 05 4C 80 00 00 1A 00
status: 0x2 (CHECK CONDITION)
Sense Bytes: 70 00 03 00 00 00 00 0A 00 00 00 00 11 05 00 00
Sense Key: 0x3 Medium Error, Segment 0
Sense Code: 0x11 Qual 0x05 (l-ec uncorrectable error) Fru 0x0
Sense flags: Blk 0 (not valid) 
cmd finished after 5.144s timeout 40s
readom: Input/output error. Cannot read source disk
readom: Retrying from sector 347264.
.........................~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~+~~~-~~~
readom: Input/output error. Error on sector 347288 not corrected. Total of 1 errors.

Time total: 1128.913sec
Read 694528.00 kB at 615.2 kB/sec.
Max corected retry count was 0 (limited to 128).
The following 1 sector(s) could not be read correctly:
347288
yaniv at yaniv-desktop:~$ 

yaniv at yaniv-desktop:~$ cmp '/media/disk/ubuntu_iso/ubuntu-7.10-beta-desktop-amd64.iso' '/home/yaniv/Desktop/ubuntu.iso' 
cmp: EOF on /home/yaniv/Desktop/ubuntu.iso
yaniv at yaniv-desktop:~$ ls -l /home/yaniv/Desktop/ubuntu.iso
-rw-r--r-- 1 yaniv yaniv 711196672 2007-10-02 00:59 /home/yaniv/Desktop/ubuntu.iso
yaniv at yaniv-desktop:~$ ls -l /media/disk/ubuntu_iso/ubuntu-7.10-beta-desktop-amd64.iso
-rw-r--r-- 1 root root 711245824 2007-10-01 21:45 /media/disk/ubuntu_iso/ubuntu-7.10-beta-desktop-amd64.iso
yaniv at yaniv-desktop:~$


********************************* Nero Express ***************************************

The same cd was successfully copied by Nero Express. Converting nrg to
iso, as you can see below, produced larger iso file.

yaniv at yaniv-desktop:~$ nrg2iso '/home/yaniv/Desktop/nrg/ubuntu_image.nrg' '/home/yaniv/Desktop/nrg/ubuntu_image.iso'
|======================================================================>[100%]
/home/yaniv/Desktop/nrg/ubuntu_image.iso written : 711250076 bytes
yaniv at yaniv-desktop:~$ cmp '/home/yaniv/Desktop/nrg/ubuntu_image.iso' '/home/yaniv/Desktop/ubuntu-7.10-beta-desktop-amd64.iso' 
cmp: EOF on /home/yaniv/Desktop/ubuntu-7.10-beta-desktop-amd64.iso
yaniv at yaniv-desktop:~$ ls -l /home/yaniv/Desktop/nrg/ubuntu_image.iso
-rw-r--r-- 1 yaniv yaniv 711250076 2007-10-02 01:47 /home/yaniv/Desktop/nrg/ubuntu_image.iso
yaniv at yaniv-desktop:~$ ls -l  '/home/yaniv/Desktop/ubuntu-7.10-beta-desktop-amd64.iso'
-rw-r--r-- 1 yaniv yaniv 711245824 2007-09-27 17:58 /home/yaniv/Desktop/ubuntu-7.10-beta-desktop-amd64.iso
yaniv at yaniv-desktop:~$ 

************************************* cp -r *******************************************
The same cd was successfully copied and pass cmp test

yaniv at yaniv-desktop:~$ cp -r '/media/cdrom0'/* '/home/yaniv/Desktop/untitled folder' 
yaniv at yaniv-desktop:~$ diff -r '/home/yaniv/Desktop/untitled folder' '/media/cdrom0' 
Only in /media/cdrom0: .disk
diff: /home/yaniv/Desktop/untitled folder/ubuntu: recursive directory loop
yaniv at yaniv-desktop:~$

-- 
bad burn with Samsung SH-S183L
https://bugs.launchpad.net/bugs/146811
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