Hi, Paul von Behren wrote: > Media current: BD-R sequential recording > Media product: MILLEN/MR1/0 , Millenniata Inc. > Media status : is blank > Media blocks : 0 readable , 12219392 writable , 12219392 overall
This one should work with xorriso. > Media current: BD-R sequential recording, Pseudo Overwrite formatted > Media product: VERBAT/IMk/0 , Mitsubishi Kagaku Media Co. > Media status : is unsuitable , is POW formatted > Media blocks : 35185280 readable , 12906880 unused , 48092160 overall > Media summary: unsuitable Pseudo Overwrite formatted BD-R A "100 GB" medium. Must have cost nearly as much as the drive. :)) This one might still be writable by growisofs for an add-on session with option -M. Inquire its state by dvd+rw-mediainfo /dev/sr0 (The tray with the BD must already be loaded, because dvd+rw-mediainfo won't pull it in.) Specs for BD media offer a mode called Pseudo Overwrite where the Defect Management is (mis-)used to replace written blocks by spare blocks if a write operation happens again to such a written block. growisofs uses it to update the superblock at offset 0, whereas libburn programs rely on the convention that the operating systems mount the superblock of the first track of the most recent session. > I will try to burn an m-disk next with xorriso and let you know how it > goes. If you use the blank BD-R unformatted, then it will be written with full nominal speed. That might become loud. Inquire the speeds by xorriso -outdev /dev/sr0 -list_speeds and consider to reduce speed and noise by xorriso command -speed. If you want Defect Management (of which i'm not overly convinced), then let xorriso format the medium. You can do this in a separate run before the actual write run xorriso -outdev /dev/sr0 -format "as_needed" or use the -format command in the course of the first xorriso write run which uses this medium. "as_needed" applies the default formatting size (normally 23098 MiB). You may get proposals for the loaded medium by: xorriso -outdev /dev/sr0 -list_formats like Format status: unformatted, up to 23866.0 MiB Format idx 0 : 00h , 11826176s , 23098.0 MiB Format idx 1 : 32h , 11826176s , 23098.0 MiB Format idx 2 : 32h , 5796864s , 11322.0 MiB Format idx 3 : 32h , 12088320s , 23610.0 MiB and choose other division between payload and spare blocks, by e.g. xorriso -outdev /dev/sr0 -format by_index_3 xorriso -outdev /dev/sr0 -format by_size=22586m (More than 23866m will not be achievable, of course.) Have a nice day :) Thomas
