Hardware Info:
CDROM	
HL-DT-ST DVDRAMGSA4040B
	 Bus: SCSI
	 Class (spec) :CD ROM
	 Class: Mass Storage Device
	 Device : HL-DT-ST DVDRAMGSA4040B
	 Device name : /dev/sr0
	 Model : HL-DT-ST DVDRAMGSA4040B
	PROG. INTERFACE : 5
	Rev : A106
	Unique key : zyP1.BqJPu6knin6
	Vender : HL-DT-ST
	cdr : yes
	cdrw : yes
	driver : ide-scsi
	dvd : yes
	dvdr : yes
	dvdram : yes
	notready : yes
	old_unique_key : 6v7t.3jacSw1E1

  K3B Setup
  Programs	
Path                                        Version                 Features
cdrdao
 ? /user/bin/cdrdao	       1.1.7              overburn, multisession
cdrecord
? /usr/bin/cdrecord	       2,0                 gracetime, overburn, cdtext, suidroot
eMovix (not found)
mkisofs
? /usr/bin/mkisofs                    2.0                udf, dvd-video, joliet-long



I am using  DVD-RW  rewritable   4.7GB   120 min    CD