Writing to CD-R with k3b or Nautilus fails in FC5. Writing to DVD-R works ok. Worked under FC4. Using dual boot system and CD writing works with Windows. The following is the k3b debug output: System ----------------------- K3b Version: 0.12.15 KDE Version: 3.5.2-1.2.fc5.kde QT Version: 3.3.6 Kernel: 2.6.16-1.2080_FC5 Devices ----------------------- PIONEER DVD-RW DVR-109 1.50 (/dev/hdc, ) at [CD-R; CD-RW; CD-ROM; DVD-ROM; DVD-R; DVD-RW; DVD-R DL; DVD+R; DVD+RW; DVD+R DL] [DVD-ROM; DVD-R Sequential; DVD-R Dual Layer Sequential; DVD-R Dual Layer Jump; DVD-RW Restricted Overwrite; DVD-RW Sequential; DVD+RW; DVD+R; DVD+R Double Layer; CD-ROM; CD-R; CD-RW] [SAO; TAO; RAW; SAO/R96P; SAO/R96R; RAW/R16; RAW/R96P; RAW/R96R; Restricted Overwrite] K3b ----------------------- Size of filesystem calculated: 265562 Used versions ----------------------- cdrecord: 2.1.1a03 cdrecord ----------------------- Cdrecord-Clone 2.01.01a03-dvd (i686-pc-linux-gnu) Copyright (C) 1995-2005 Jörg Schilling NOTE: This version contains the OSS DVD extensions for cdrtools and thus may have bugs related to DVD issues that are not present in the original cdrtools. Please send bug reports or support requests to http://bugzilla.redhat.com/bugzilla The original cdrtools author should not be bothered with problems in this version. TOC Type: 3 = CD-ROM XA mode 2 /usr/bin/cdrecord: Resource temporarily unavailable. Cannot get mmap for 4198400 Bytes on /dev/zero. cdrecord command: ----------------------- /usr/bin/cdrecord -v gracetime=2 dev=/dev/hdc speed=40 -tao driveropts=burnfree -eject -multi -xa -tsize=265562s - mkisofs ----------------------- 265562 INFO: UTF-8 character encoding detected by locale settings. Assuming UTF-8 encoded filenames on source filesystem, use -input-charset to override. mkisofs command: ----------------------- /usr/bin/mkisofs -gui -graft-points -volid K3b data project -volset -appid K3B THE CD KREATOR (C) 1998-2005 SEBASTIAN TRUEG AND THE K3B TEAM -publisher -preparer -sysid LINUX -volset-size 1 -volset-seqno 1 -sort /tmp/kde-victor/k3bDKap0b.tmp -rational-rock -hide-list /tmp/kde-victor/k3bwlOHuc.tmp -joliet -hide-joliet-list /tmp/kde-victor/k3bjDeZra.tmp -full-iso9660-filenames -iso-level 2 -path-list /tmp/kde-victor/k3btV9GGa.tmp