CDRTOOLS compiles without changes on any UnixWare 7.0.1 or later installation having the UnixWare/OpenServer DevKit (UODK) or GCC-2.95 and smake-1.2 installed.You can get pre-packaged, pkgadd installable binaries from:    http://www.sco.com/skunkware/cdrtools   Some general notes on CDRTOOLS are available from:   http://www.sco.com/skunkware/cdrtools/SCO-NOTES.htmlLimitations for CDRTOOLS-1.8 on UnixWare:1) SCO UnixWare 2.1.X and UnixWare 7.0.0 are not supported   - UW2.1.X will compile/work with little changes   - UW7.0.0 wasn't tested at all 2) There is only support for SCSI devices3) UnixWare 7.0.1 requires additional PTF's to enable some   host bus adapters to work with a logical block size of more than   512 bytes. (Please see the above SCO_NOTES document for details!)===================================================================NOTE: cdrecord now supports the -scanbus option. Therefore the       old addressing methods are NO LONGER AVAILABLE !!!===================================================================The correct dev= syntax on UnixWare 7 is:    dev=scsibus,target,lun	(and scsibus is scsibus now!!!)A sample output from cdrecord -scanbus looks like:#cdrecord -scanbusCdrecord 1.8 (i586-sco-sysv5uw7.0.1) Copyright (C) 1995-2000 J鰎g SchillingUsing libscg version 'schily-0.1'scsibus0:        0,0,0     0) 'SEAGATE ' 'ST34573LC       ' '5960' Disk        0,1,0     1) 'SEAGATE ' 'ST34573LC       ' '5960' Disk        0,2,0     2) 'SEAGATE ' 'ST34573LC       ' '5960' Disk        0,3,0     3) *        0,4,0     4) *        0,5,0     5) 'PIONEER ' 'CD-ROM DR-U06S  ' '1.05' Removable CD-ROM        0,6,0     6) 'TEAC    ' 'CD-R56S         ' '1.0E' Removable CD-ROM        0,7,0     7) *The first column showing the triple x,y,z tells you the address to use.As you can see the TEAC CD-R56S CD-Writer does have the following address:     dev=0,6,0     ===================================================================           THE OLD ADDRESSING IS NO LONGER AVAILABLE!	             PLEASE ADJUST YOUR /etc/default/cdrecord FILES!===================================================================Running cdrecord with the old address method will result in an error!#cdrecord dev=/dev/rcdrom/cdrom1:6,0 -inqCdrecord 1.8 (i386-pc-sco3.2v5.0.5) Copyright (C) 1995-2000 J鰎g Schillingscsidev: '/dev/rcd1:6,0'devname: '/dev/rcd1'scsibus: 0 target: 6 lun: 0cdrecord: Invalid argument. Open by 'devname' no longer supported on this OS. Cannot open SCSI driver.cdrecord: For possible targets try 'cdrecord -scanbus'. Make sure you are root.To compile cdrtools, you need 'smake' from:   ftp://ftp.sco.com/skunkware/uw7/Packagesor 'gmake'. Smake is preferred as gmake bugs will cause bogus warningsand may confuse about the state of the make run.