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Some clarifications in wiki/QemuXorriso

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This commit is contained in:
Thomas Schmitt 2011-11-16 11:32:23 +00:00
parent 2f73f76c05
commit 1e07b5142b
1 changed files with 7 additions and 6 deletions
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doc/qemu_xorriso.wiki
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@ -406,7 +406,12 @@ So this simulation is usable only for first sessions on blank media.
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Now for formatted overwritable media. Now for formatted overwritable media:
All blank, write and check runs of above tests "Writing multiple sessions"
may also be performed with DVD+RW, DVD-RAM, formatted DVD-RW, and BD-RE.
There is no way to close formatted media. The command -close "on"
gets silently ignored.
The write methods and states of formatted media differ from those of The write methods and states of formatted media differ from those of
sequential media. But xorriso presents to the user a unified sequential media. But xorriso presents to the user a unified
@ -417,7 +422,6 @@ build on each other.
So from the view of xorriso commands, the only task which makes So from the view of xorriso commands, the only task which makes
them differ from sequential media, is to apply optional formatting them differ from sequential media, is to apply optional formatting
or re-formatting. or re-formatting.
A special case are BD-R, which xorriso may format but will not bring A special case are BD-R, which xorriso may format but will not bring
into (pseudo-) overwritable state. Formatted BD-R perform Defect into (pseudo-) overwritable state. Formatted BD-R perform Defect
Management by default, which checkreads during writing and replaces Management by default, which checkreads during writing and replaces
@ -431,10 +435,7 @@ appendable media. To make then writable from scratch, apply
-blank "as_needed", which will actually write a few bytes into the PVD -blank "as_needed", which will actually write a few bytes into the PVD
(superblock) of the ISO filesystem to invalidate it. (superblock) of the ISO filesystem to invalidate it.
There is no way to close formatted media. The command -close "on" De-formatting is only possible with DVD-RW. E.g. by -blank "deformat".
gets silently ignored.
De-formatting is possible with DVD-RW by -blank "deformat".
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