cdrecord.1..txt

另一种方法编辑刻录程序的代码!要的与偶联系呀

.\" @(#)cdrecord.1	1.34 98/10/06 Copyright 1996 J. Schilling
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.TH CDRECORD 1 "Version 1.6" "J\*org Schilling" "Schily\'s USER COMMANDS"
.SH NAME
cdrecord \- record audio or data Compact Discs from a master
.SH SYNOPSIS
.B cdrecord
[
.I "general options
]
.BI dev= device
[
.I track options
]
.IR track1 .\|.\|. trackn

.SH DESCRIPTION
.B Cdrecord
is used to record data or audio Compact Discs on an Orange Book
CD-Recorder.
.PP
The
.I device
refers to
.IR scsibus / target / lun
of the CD-Recorder. Communication on 
.I SunOS
is done with the SCSI general driver
.B scg.
Other operating systems are using a library simulation of this driver.
Possible syntax is:
.B dev=
.IR scsibus , target , lun
or
.B dev=
.IR target , lun .
In the latter case, the CD-Recorder has to be connected to the default 
SCSI bus of the machine.
.IR Scsibus ,
.I target 
and 
.I lun
are integer numbers. 
Some operating systems or SCSI transport implementations may require to
specify a filename in addition.
In this case the corect syntax for the device is:
.B dev=
.IR devicename : scsibus , target , lun
or
.B dev=
.IR devicename : target , lun .
If the name of the device node that has been specified on such a system
referres to exactly one SCSI device, a shorthand in the form
.B dev=
.IR devicename : @
or
.B dev=
.IR devicename : @ , lun
may be used instead of
.B dev=
.IR devicename : scsibus , target , lun .

.PP
To make 
.B cdrecord
portable to all \s-2UNIX\s0 platforms, the syntax
.B dev=
.IR devicename : scsibus , target , lun
is preferred as is hides OS specific knowledge about device names from the user.
A specific OS must not necessarily support a way to specify a real device file name nor a
way to specify 
.IR scsibus , target , lun .

.PP
.I Scsibus 
0 is the default SCSI bus on the machine. Watch the boot messages for more 
information or look into 
.B /var/adm/messages 
for more information about the SCSI configuration of your machine.
If you have problems to figure out what values for 
.IR scsibus , target , lun
should be used, try the 
.B \-scanbus
option of 
.B cdrecord
described below.
.PP
In 
.I Track At Once 
mode, each
.I track
corresponds to a single file that contains the prepared data for that track.
If the argument is 
.RB ` \- ',
standard input is used for that track. 
Only one track may be taken from 
.IR stdin .

.SH "GENERAL OPTIONS
.PP
General options must be before any track file name or track option.
.TP
.B \-version
Print version information and exit.
.TP
.B \-v
Increment the level of general verbosity by one.
This is used e.g. to display the progress of the writing process.
.TP
.B \-V
Increment the verbose level in respect of SCSI command transport by one.
This helps to debug problems
during the writing process, that occur in the CD-Recorder. 
If you get incomprehensible error messages you should use this flag
to get more detailed output.
.B \-VV
will show data buffer content in addition.
Using
.B \-V
or
.B \-VV
slows down the process and may be the reason for a buffer underrun.
Using
.TP
.B \-debug
Print additional debug messages. This may help to find out problems
with sector sizes and sector types.
Using
.B \-debug
slows down the process and may be the reason for a buffer underrun.
.TP
.B \-dummy
The CD-Recorder will go through all steps of the recording process,
but the laser is turned off during this procedure.
It is recommended to run several tests before actually writing to a 
Compact Disk, if the timing and load response of the system is not known.
.TP
.B \-multi
Allow multi session CD's to be made. This flag needs to be present
on all sessions of a multi session disk,
except you want to create a session that will be 
the last session on the media.
The fixation will be done in a way that allows the CD-Recorder to
append additional sessions later. This is done by generation a TOC
with a link to the next program area. The so generated media is not
100%  compatible to manufactured CD's. 
Use only for recording a multi session CD.
If this option is present, the default track type is
.BR "CD-ROM XA mode 2" .
The 
.I Sony 
drives have no hardware support for 
.BR "CD-ROM XA mode 2" .
You have to specify the 
.B \-data 
option in order to create multi session disks on these drives.
.TP
.B \-msinfo
Retrieve multi session info in a form suitable for 
.B "mkisofs-1.10" 
or later.
.sp
This option makes only sense with a CD that contains at least
one closed session and is appendable (not finally closed yet). 
Some drives create error messages if you try to get the multi 
session info for a disk that is not suitable for this operation.
.TP
.B \-toc
Retrieve and print out the table of content or PMA of a CD.
With this option, 
.B cdrecord
will with CD-R drives and CD-ROM drives.
.TP
.B \-fix
The disk will only be fixated (i.e. a TOC for a CD-Reader will be written). 
This may be used, if for some reason the disk has been written but not
fixated. This option currently does not work with TEAC drives.
.TP
.B \-nofix
Do not fixate the disk after writing the tracks. This may be used
to create an audio disk in steps. An un-fixated disk can usually not be used
on a non CD-writer type drive but there are audio CD players that will
be able to play such a disk.
.TP
.B \-load
Load the media and exit. This only works with a tray loading mechanism
but seems to be useful when using the Kodak disk transporter.
.TP
.B \-eject
Eject disk after doing the work.
Some Devices (e.g. Philips) need to eject the medium before creating a new
disk. Doing a \-dummy test and immediately creating a real disk would not
work on these devices.
.TP
.B "speed=#
Set the speed factor of the writing process to #.
# is an integer, representing a multiple of the audio speed.
This is about 150 KB/s for CD-ROM and about 172 KB/s for CD-Audio.
If no 
.I speed
option is present, 
.B cdrecord
will try to get the speed value from the 
.B CDR_SPEED
environment.
If your drive has problems with
.I "speed=2 
or 
.IR "speed=4" , 
you should try 
.IR "speed=0" .
.TP
.BI blank= type
Blank a CD-RW and exit or blank a CD-RW before writing. The blanking type may be one of:
.RS
.TP 12
help
Display a list of possible blanking types.
.TP
all
Blank the entire disk. This may take a long time.
.TP
fast
Minimally blank the disk. This results in erasing the PMA, the TOC and the pregap.
.TP
track
Blank a track.
.TP
unreserve
Unreserve a reserved track.
.TP
trtail
Blank the tail of a track.
.TP
unclose
Unclose last session.
.TP
session
Blank the last session.
.RE
.TP
.BR fs= #
Set the fifo (ring buffer) size to #.
You may use the same method as in 
.BR dd (1),
.BR sdd (1)
or
.BR star (1).
The number representing the size is taken in bytes unless otherwise specified.
If a number is followed directly by the letter `b', `k', `m', `s' of `f',
the size is multiplied by 512, 1024, 1024*1024, 2048 or 2352.
If the size consists of numbers separated by `x' or `*', multiplication of the 
two numbers is performed.
Thus 
.I "fs=10x63k
will specify a fifo size of 630\ kBytes.
.sp
The size specified by the 
.I fs=
argument includes the shared memory that is needed for administration. This
is at least one page of memory.
If no
.IR fs =
option is present, 
.B cdrecord
will try to get the fifo size value from the 
.B CDR_FIFOSIZE
environment.
The default fifo size is currently 4 MB.
.sp
The fifo is used to increase buffering for the real time writing process.
It allows to run a pipe from 
.B mkisofs
directly into 
.BR cdrecord .
If the fifo is active and a pipe from 
.B mkisofs
into 
.B cdrecord
is used to create a CD, 
.B cdrecord
will abort prior to do any modifications on the disk if 
.B mkisofs 
dies before it starts writing.
The recommended fifo size is between 4 and 32 MBytes.
As a rule of dumb, the fifo size should be at least equal to the size
of the internal buffer of the CD-Recorder and no more than half of
the physical amount of RAM available in the machine.
If the fifo size is big enough, the fifo statistics will print a fifo
empty count of zero and the fifo min fill is not below 20%.
It is not wise to use too much space for the fifo. If you need more
than 8 MB to write a CD on an idle machine, your machine is either
underpowered, has hardware problems or is mis-configured.
The sun4c architecture (e.g. a Sparcstation-2) has only MMU page table entries
for 16 MBytes per process. Using more than 14 MBytes for the fifo
may cause the operating system in this case to spend much time to constantly
reload the MMU tables. Newer machines from Sun do not have this MMU
hardware problem. I have no information on PC-hardware reflecting
this problem.
.sp
If you have buffer underruns or similar problems and observe a zero
.IR "fifo empty count" ,
you have hardware problems. The fifo size in this case is sufficient.
.TP
.BI dev= target
Sets the SCSI target for the CD-Recorder, see notes above.
A typical device specification is
.BI dev= 6,0
\&.
If a filename must be provided together with the numerical target 
specification, the filename is implementation specific.
The correct filename in this case can be found in the system specific
manuals of the target operating system.
On a 
.I FreeBSD
system without 
.I CAM
support, you need to use the control device (e.g.
.IR /dev/cd0.ctl ).
A correct device specification in this case may be
.BI dev= /dev/cd0.ctl:@
\&.
.sp
On Linux, drives connected to a parallel port adapter are mapped
to a virtual SCSI bus. Different adapters are mapped to different
targets on this virtual SCSI bus.
.sp
If no 
.I dev
option is present, 
.B cdrecord
will try to get the device from the 
.B CDR_DEVICE
environment.
.TP
.BI timeout= #
Set the default SCSI command timeout value to 
.IR # .
The default SCSI command timeout is the minimum timeout used for sending
SCSI commands.