I've d/led KNOPPIX_V3.4-2004-05-17-EN.iso

Three times I've tried to burn a CD, with different media, and each time it fails similar to this:
bash-2.05b# cdrecord -v speed=10 dev=0,1,0 /home/mingdao/KNOPPIX_V3.4-2004-05-17-EN.iso
Cdrecord 2.00.3 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling
TOC Type: 1 = CD-ROM
scsidev: '0,1,0'
scsibus: 0 target: 1 lun: 0
Linux sg driver version: 3.1.25
Using libscg version 'schily-0.7'
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'SONY '
Identifikation : 'DVD RW DRU-500A '
Revision : '2.0c'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
cdrecord: This version of cdrecord does not include DVD-R/DVD-RW support code.
cdrecord: If you need DVD-R/DVD-RW support, ask the Author for cdrecord-ProDVD.
Using generic SCSI-3/mmc CD-R driver (mmc_cdr).
Driver flags : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96R RAW/R96R
Drive buf size : 8112896 = 7922 KB
FIFO size : 4194304 = 4096 KB
Track 01: data 0 MB padsize: 250 KB
Total size: 0 MB (00:04.02) = 302 sectors
Lout start: 1 MB (00:06/02) = 302 sectors
Current Secsize: 2048
ATIP info from disk:
Indicated writing power: 5
Is not unrestricted
Is not erasable
Disk sub type: Medium Type B, low Beta category (B-) (4)
ATIP start of lead in: -11607 (97:27/18)
ATIP start of lead out: 359849 (79:59/74)
Disk type: Short strategy type (Phthalocyanine or similar)
Manuf. index: 18
Manufacturer: Plasmon Data systems Ltd.
Blocks total: 359849 Blocks current: 359849 Blocks remaining: 359547
Starting to write CD/DVD at speed 4 in real TAO mode for single session.
Last chance to quit, starting real write 0 seconds. Operation starts.
Waiting for reaader process to fill input buffer ... input buffer ready.
BURN-Free is ON.
Turning BURN-Free off
Performing OPC...
Starting new track at sector: 0
Track 01: 0 of 0 MB written.
WARNING: padding up to secsize.
Track 01: writing 250 KB of pad data.
Track 01: Total bytes read/written: 356576/614400 (300 sectors).
Writing time: 28.420s
Average write speed 1.3x.
Fixating...
Fixating time: 61.889s
cdrecord: fifo had 6 puts and 6 gets.
cdrecord: fifo was 0 times empty and 0 times full, min fill was 100%.

but gives me this when I look at it.

bash-2.05b# ls -alc /mnt/cdrw
total 21
dr-xr-xr-x 6 root root 2048 May 2 04:37 .
drwxr-xr-x 7 root root 168 Jun 5 13:17 ..
dr-xr-xr-x 3 root root 4096 May 18 06:23 KNOPPIX
dr-xr-xr-x 2 root root 2048 Mar 3 11:06 LinuxTag
dr-xr-xr-x 2 root root 2048 Apr 2 22:09 Talks
-r-xr-xr-x 1 root root 54 Feb 20 12:49 autorun.bat
-r-xr-xr-x 1 root root 45 May 2 04:36 autorun.inf
-r-xr-xr-x 1 root root 967 May 2 04:36 autorun.pif
dr-xr-xr-x 3 root root 2048 Feb 20 12:49 boot
-r--r--r-- 1 root root 3262 Mar 3 05:28 cdrom.ico
-r--r--r-- 1 root root 2181 May 2 04:37 index.html

I've used a CD-RW and a DVD-RW, with the same results. Both drives burn iso images okay otherwise. I guess it goes without saying that it will not boot...