NAME
mmcformat —
format optical media
SYNOPSIS
mmcformat |
[-BDFGHhIMOpRrSsw]
[-b
blockingnr]
[-c
cert-num] special |
DESCRIPTION
The
mmcformat utility formats optical media conforming to the
MMC standard. This includes CD, DVD, and Blu-Ray (BD) media.
The options are as follows:
-
-
- -B
- Blank media when possible before formatting it.
-
-
- -b
blockingnr
- Explicitly select packet size in sectors (for CD-RW only).
It is not recommended to change this from its default of 32.
-
-
- -c
cert-num
- Certify media for DVD-RAM / DV-RE. The argument cert-num
specifies:
-
-
- 0
- no certification
-
-
- 1
- full certification
-
-
- 2
- quick certification
-
-
- -D
- Debug mode. Print all SCSI/ATAPI command errors.
-
-
- -F
- Format media.
-
-
- -G
- Grow last CD-RW/DVD-RW session.
-
-
- -H
- Show help and print formatting choices for the inserted
media.
-
-
- -h
- Show help and print formatting choices for the inserted
media.
-
-
- -I
- Show help and print formatting choices for the inserted
media.
-
-
- -M
- Select MRW (Mount Rainier) error correcting background
format.
-
-
- -O
- Old style CD-RW formatting; recommended for CD-RW.
-
-
- -p
- Explicitly set packet format.
-
-
- -R
- Restart previously stopped MCD-MRW or DVD+RW background
format.
-
-
- -r
- Recompile defect list for DVD-RAM.
-
-
- -S
- Grow spare space DVD-RAM / BD-RE.
-
-
- -s
- Format DVD+MRW / BD-RE with extra spare space.
-
-
- -w
- Wait until completion of background format.
NOTES
Due to the enormous varieties in optical media,
mmcformat is
made as generic as possible. This can result in confusion.
EXAMPLES
mmcformat -B -O
/dev/rcd0d
Blanks and then formats a CD-RW disc using the “old style” format
command. It is recommended to use this “old style” command unless
your drive reports that it's not supported; in that case, resort to the
default
-F. Note that a CD-RW disc can be reformatted
without being blanked. Blanking switches between sequential and fixed packet
writing by erasing the disc. This can also help to revive old discs.
mmcformat -F -M
/dev/rcd0d
Format a CD-RW or a DVD+RW to use MRW (Mount Rainier). This format tries to hide
media flaws as much as possible by relocation.
SEE ALSO
scsictl(8)
HISTORY
The
mmcformat command first appeared in
NetBSD 5.0.
AUTHORS
Reinoud Zandijk
<
reinoud@NetBSD.org>
BUGS
mmcformat could be merged with
scsictl(8) but that tool is
very hard disk oriented.