cdrecord can't blank cd rws anymore

Binary package hint: cdrecord

Trying to blank a cdrw with cdrecord leads to:

cdrecord: Warning: Running on Linux-2.6.15-22-686
cdrecord: There are unsettled issues with Linux-2.5 and newer.
cdrecord: If you have unexpected problems, please try Linux-2.4 or Solaris.
scsidev: '/dev/hdd'
devname: '/dev/hdd'
scsibus: -2 target: -2 lun: -2
Warning: Open by 'devname' is unintentional and not supported.
Linux sg driver version: 3.5.27
Error: Cannot gain SYS_RAWIO capability.Is cdrecord installed SUID root?
: Operation not permitted
cdrecord: Warning: using inofficial version of libscg (debian-0.8debian2 '@(#)scsitransp.c 1.91 04/06/17 Copyright 1988,1995,2000-2004 J. Schilling').
SCSI buffer size: 64512
Cdrecord-Clone 2.01.01a03 (i686-pc-linux-gnu) Copyright (C) 1995-2005 Joerg Schilling
NOTE: this version of cdrecord is an inofficial (modified) release of cdrecord
      and thus may have bugs that are not present in the original version.
      Please send bug reports and support requests to <email address hidden>.
      The original author should not be bothered with problems of this version.

TOC Type: 1 = CD-ROM
Using libscg version 'debian-0.8debian2'.
atapi: 1
Device type : Removable CD-ROM
Version : 0
Response Format: 2
Capabilities :
Vendor_info : 'HL-DT-ST'
Identifikation : 'DVDRAM GSA-4082B'
Revision : 'A204'
Device seems to be: Generic mmc2 DVD-R/DVD-RW.
Current: 0x000A
Profile: 0x0012
Profile: 0x0011
Profile: 0x0014
Profile: 0x0013
Profile: 0x001A
Profile: 0x001B
Profile: 0x0010
Profile: 0x0009
Profile: 0x000A (current)
Profile: 0x0008 (current)
Profile: 0x0002
Using generic SCSI-3/mmc CD-R/CD-RW driver (mmc_cdr).
Driver flags : MMC-3 SWABAUDIO BURNFREE
Supported modes: TAO PACKET SAO SAO/R96P SAO/R96R RAW/R16 RAW/R96P RAW/R96R
Drive buf size : 1204224 = 1176 KB
Drive DMA Speed: 11200 kB/s 63x CD 8x DVD
cdrecord: Trying to use ultra high speed+ medium on a writer which is not
compatible with ultra high speed+ media.
Current Secsize: 2048
ATIP info from disk:
  Indicated writing power: 0
  Reference speed: 0
  Is not unrestricted
  Is erasable
  Disk sub type: Ultra High speed+ Rewritable media (3)
  ATIP start of lead in: -11075 (97:34/25)
  ATIP start of lead out: 359849 (79:59/74)
  2T speed low: 8 2T speed high: 32
  power mult factor: 0 0
  recommended erase/write power: 0
  A1 values: 00 00 80
  A2 values: 39 80 00
  A3 values: 04 C4 B8
Disk type: Phase change
Manuf. index: 11
Manufacturer: Mitsubishi Chemical Corporation

Used to work with hoary and dapper without problems, but is broken since upgrade to edgy.