I forgot the attached file. And the writer model is 48125S not 18125S. Calling: /usr/lib/xcdroast-0.98/bin/xcdrwrap CDRECORD dev=0,0,0 gracetime=2 fs=2048k driveropts=burnfree,noforcespeed -v -useinfo speed=12 -dao -dummy -eject -pad -data "/rsrv/var/images/download1-01.img" ... scsidev: '0,0,0' scsibus: 0 target: 0 lun: 0 Linux sg driver version: 3.1.24 pregap1: -1 Cdrecord 2.0 (i686-pc-linux-gnu) Copyright (C) 1995-2002 Jörg Schilling TOC Type: 1 = CD-ROM Using libscg version 'schily-0.7' Driveropts: 'burnfree,noforcespeed' atapi: 1 Device type : Removable CD-ROM Version : 0 Response Format: 2 Capabilities : Vendor_info : 'LITE-ON ' Identifikation : 'LTR-48125S ' Revision : '1S05' Device seems to be: Generic mmc CD-RW. Using generic SCSI-3/mmc CD-R driver (mmc_cdr). Driver flags : MMC-3 SWABAUDIO BURNFREE FORCESPEED Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R Drive buf size : 1422080 = 1388 KB FIFO size : 2097152 = 2048 KB Track 01: data 648 MB padsize: 30 KB Total size: 745 MB (73:49.85) = 332239 sectors Lout start: 745 MB (73:51/64) = 332239 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: -11933 (97:22/67) ATIP start of lead out: 359849 (79:59/74) Disk type: Short strategy type (Phthalocyanine or similar) Manuf. index: 43 Manufacturer: Acer Media Technology, Inc. Blocks total: 359849 Blocks current: 359849 Blocks remaining: 27610 Forcespeed is OFF. Starting to write CD/DVD at speed 12 in dummy SAO mode for single session. Waiting for reader process to fill input buffer ... input buffer ready. BURN-Free is ON. Sending CUE sheet... Writing pregap for track 1 at -150 Starting new track at sector: 0 cdrecord: Input/output error. write_g1: scsi sendcmd: no error CDB: 2A 00 00 00 05 16 00 00 1F 00 status: 0x2 (CHECK CONDITION) Sense Bytes: 70 00 04 00 00 00 00 0A 00 00 00 00 08 03 00 00 Sense Key: 0x4 Hardware Error, Segment 0 Sense Code: 0x08 Qual 0x03 (logical unit communication crc error (ultra-dma/32)) Fru 0x0 Sense flags: Blk 0 (not valid) cmd finished after 0.033s timeout 200s Sense Bytes: 70 00 00 00 00 00 00 0A 00 00 00 00 00 00 00 00 00 00 write track data: error after 2666496 bytes Writing time: 23.177s Average write speed 191.3x. Min drive buffer fill was 99% Fixating... WARNING: Some drives don't like fixation in dummy mode. Fixating time: 0.703s BURN-Free was never needed. cdrecord: fifo had 74 puts and 43 gets. cdrecord: fifo was 0 times empty and 33 times full, min fill was 75%.