From: "Thomas Schmitt" <scdbac...@gmx.net> Date: Sat, 26 Feb 2022 18:29:45 +0100 > What messages do you get printed when the CD-or-DVD medium is inserted > and you do: > > xorriso -outdev /dev/sr0 -toc
root@joule:/home/root# xorriso -outdev /dev/sr0 -toc xorriso 1.5.2 : RockRidge filesystem manipulator, libburnia project. Drive current: -outdev '/dev/sr0' Media current: CD-R Media status : is blank Media summary: 0 sessions, 0 data blocks, 0 data, 703m free Drive current: -outdev '/dev/sr0' Drive access : exclusive:unrestricted Drive type : vendor 'SONY' product 'CD-RW CRX320E' revision 'NYK2' Media current: CD-R Media product: 97m26s66f/79m59s71f , CMC Magnetics Corporation Media status : is blank Media blocks : 0 readable , 359844 writable , 359844 overall Media summary: 0 sessions, 0 data blocks, 0 data, 703m free root@joule:/home/root# Thanks. I should have read the fine print at the center of the disk. To squeeze the data, add -zisofs. FilesToDVD () { \ printf "Insert open or new DVD-R."; read t; cd ~/MY0.Bak/; xorriso -for_backup -dev /dev/sr0 \ -update_r . / \ -zisofs \ -commit \ -toc -check_md5 failure -- \ -eject all ; } I have a supply of CD-Rs and DVDs aren't accessible at present. Likely xorriso provides a way to spread an archive over multiple CDs. Documentation or example? Thx, ... P. -- mobile: +1 778 951 5147 VoIP: +1 604 670 0140 48.7693 N 123.3053 W