Re: cdrskin: how to get quick BD-RE format?
Hi,
> Now I'm trying to do w/o dvd+rw-format, so I added
> format=as_needed
> to the cdrskin command line already used for burning, and taken out
Can it be you mean blank=as_needed ?
This applies default formatting to unformatted BD-RE.
> Now cdrskin will automatically format a blank BD-RE, but it's doing a full
> format (ie: more than 1 hour for a 2x BD-RE), while dvd+rw-format would do a
> quick (a few minutes if I remember correctly) format, just enough to get it
> going.
Probably the difference is in the Sub-type field of the FORMAT UNIT
command. dvd+rw-format uses type 2 for "-format=full" and type 3 else.
The matching cdrskin blank type of cdrskin for Sub-type 2 would be
blank=format_defectmgt_cert_off
This formats to default size.
You may chose other format sizes by a further blank= option.
Like:
blank=format_defectmgt_cert_off blank=format_defectmgt_payload_23610m
or
blank=format_defectmgt_cert_off blank=format_by_index_2
The latter refers to the idx numbers as listed by
$ cdrskin -v dev=/dev/sr3 --list_formats
...
BD Spare Area: 0 blocks consumed, 393216 blocks available
Format idx 0 : 00h , 11826176s , 23098.0 MiB
Format idx 1 : 01h , 11564032s , 22586.0 MiB
Format idx 2 : 30h , 11826176s , 23098.0 MiB
Format idx 3 : 30h , 11564032s , 22586.0 MiB
Format idx 4 : 30h , 12088320s , 23610.0 MiB
Format idx 5 : 31h , 12219392s , 23866.0 MiB
format_defectmgt_payload_... can be chosen quite freely. But extreme wishes
might lead to rejection of the FORMAT UNIT command by the drive.
> Should I try
> format=format_if_needed
> instead?
For BD-RW this has the same effect as "as_needed".
It will make a difference with CD-RW (no action rather than blanking),
with DVD-RW (formatting rather than blanking), or unused BD-R (formatting
rather than no action).
Have a nice day :)
Thomas
Reply to: