I have checked the lilo, menu.lst and both modprobe files but there where no hdc=ide-scsi entries
I have run lsmod and the ide-cd is present.
I did try the command you have given and the result is below. It stops there with no more activity. At least the machine was not freezing so I could check what was running with KSysGuard. Nothing was growing in memory usage, cdrecord was using about 6 mb steady.
Here is the result command and the last line stayed there until I closed the terminal. Control-C did not stop it and I could not kill the cdrecord with the kill -9 command.
[username@machinename username]# cdrecord -dummy dev=/dev/hdc /home/username/MyDownloads/KNOPPIX_V3.7-2004-12-08-EN.iso
cdrecord: No write mode specified.
cdrecord: Asuming -tao mode.
cdrecord: Future versions of cdrecord may have different drive dependent defaults.
Cdrecord-Clone 2.01-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2004 Jörg Schilling
Note: This version is an unofficial (modified) version with DVD support
Note: and therefore may have bugs that are not present in the original.
Note: Please send bug reports or support requests to <firstname.lastname@example.org>.
Note: The author of cdrecord should not be bothered with problems in this version.
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Using libscg version 'schily-0.8'.
cdrecord: Warning: using inofficial libscg transport code version (warly-Mandrakelinux-scsi-linux-sg '@(#)scsi-linux-sg.c 1.83 04/05/20 Copyright 1997 J. Schilling').
Device type : Removable CD-ROM
Version : 0
Response Format: 1
Vendor_info : 'MSI '
Identifikation : 'CD-RW MS-8348 '
Revision : '120D'
Device seems to be: Generic mmc CD-RW.
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC-2 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Does it give you more ideas. I did a search of the message "cdrecord: Input/output error. read buffer: scsi sendcmd: no error" and only found something that talked about DMA. But I do not know what to do or what it means.