Can the CD recorder be used as a reader while
it is attached to, or installed in, CD Studio?
No. Since the CD recorder is attached to a
separate SCSI chain within the CD Studio,
it is not possible to access a disc in the
CD recorder from your host. The only communication
possible between the CD Studio and the CD
recorder takes place when your premastered
image is being recorded onto the CD in the
CD recorder. This operation is called by the
MakeDisc software, and is controlled by the
CD Studio's firmware.
How can I make an exact duplicate of an existing
Place the source CD into an external CD reader.
Use dd, defining the input file to be the
raw CD reader device name, and the output
file to be the Studio's tape device name.
This will cause all of the information on
your source CD to be transferred to CD Studio's
hard drive. You may then use the mt fsf command
for your platform and OS to cause the data
to be recorded onto a blank CD in your CD
recorder. A sample command line using dd might
dd if=/dev/raw_cdrom_input_device of=/dev/studio_output_device
After I use dd to try to copy a source CD
I get a Read I/O error. What happened?
The I/O error is normal, and simply indicates
that the last of the information from the
source CD has been read. You should compare
the numbers reported for records in and records
out; if they are the same, or they are within
one record of each other, there is nothing
to worry about. Some versions of the UNIX
OS will not report an error.
What kind of tape device does CD Studio emulate?
CD Studio emulates an ATT type, auto-rewind
style, high density 8200 exabyte tape device.
Can I mount the premastered image once it
has been dumped to the studio?
Some UNIX platforms and OSs support this mountback
feature. If reference to your platform and
OS are not listed in the manual, call YMI
Technical Support at (800) 496-4237 for more
details. Mountback is also possible under
Windows NT. If your UNIX OS supports multiple
LUNs, chances are you will be able to take
advantage of mountback.
How do I purge the Studio?
Make a note of the settings of the switches
in the 8-position DIP switch block on the
back of CD Studio. Turn all switches on, then
press the "RESET" switch on the
front panel, or power-cycle the Studio. You
should hear the Studio beep once, and the
hard drive LED indicator should flash, then
come on solidly. Let the Studio run in this
mode for about 20 minutes. Return the switches
to their original positions, and power-cycle
or reset the Studio once again. Your Studio
should now have been purged.
When I try to purge, my hard drive LED does
not come on. What's wrong?
Your level of firmware may not support purging.
Check the back of your Studio. If you do not
have a firmware of at least 0.97a, then your
Studio will not purge.
What does purging the Studio do?
Purging your Studio will reset the Studio
CMOS, clear the data pointers of the Studio's
hard drive, and will write a test pattern
to each and every block on the hard drive.
Any premastered image that was present on
the hard drive will be destroyed.
Will the purge test pattern interfere with
the validity of my next premastered image?
No, your next image will not be affected by
Sometimes when I premaster and then cut the
image, the information on the CD is not the
same as what I thought I had premastered.
It looks like the image from the previous
job. What happened?
Your host system may not have sent the rewind
command to the Studio properly. If your OS
supports the mt tape erase command, you can
try erasing the image, rewind, then premaster
again. If you cannot use the erase command,
try sending the mt rewind command a time or
two, then premaster and cut again.
possibility is that the tape device that you
are using is not an auto-rewind style tape
device. If not, then send the mt tape rewind
command to the Studio before and after any
operation involving the Studio.
may also want to veryify that your data set
is REALLY what you think it should be. Go
to the path specified as your MakeDisc Base
Directory and double check.
if all of the above does not work, put the
Studio into purge mode, wait 20 minutes, return
the studio to normal operating mode, then
My CD Studio is not in purge mode, but the
hard drive LED is constantly lit. What's wrong?
Check the cabling, termination, and SCSI IDs
of all equipment on your SCSI chain. Verify
that cables are connected and seated properly.
If the light stays on, try disconnecting all
external devices from your host except CD
Studio. Also disconnect any peripherals attached
to the Studio's "WRITER" port. Power-cycle
the Studio. If the light stays on, disconnect
Studio from your host completely and power-cycle
it again. If the light is still on, call YMI
Technical Support at (800) 496-4237.
If the light goes off at some point in the
above procedure, start reconnecting the other
devices one at a time. It's possible that
one of your other pieces of equipment attached
to Studio, or the cable used to attach it
When I try to send my premastered image to
the Studio I get an error message saying that
I cannot write the buffer to the output device.
Sometimes system glitches can cause this problem.
The best way to recover is to halt your host;
bring down all external Studio peripherals
such as disc transporters/autoloaders, printers,
and CD recorders; power-cycle the Studio;
wait 45 seconds after hearing the Studio beep;
restart the Studio peripherals; reboot your
host; bring up MakeDisc and try premastering
your image again.
possibility would be that you are using the
wrong device name for Studio. Check your tape
device nodes and insure that you are giving
MakeDisc the correct tape device.
While premastering, I get a message that says,
"Finished with media 1; insert new media
and press return." What does this mean?
Check to make sure that you have indicated
your Output Device/File Size to be set to
650 Mbytes, the maximum amount of data able
to be recorded on a standard 74-minute piece
of media. If you were to set this number to
400 Mbytes, for example, and your image size
was actually 450 Mbytes, you would see the
above error message. Likewise, if you have
set your Output Device/ File Size to 650 Mbytes,
and you see the error message, you are probably
trying to premaster an image that is too large
to fit onto a single CD. You should check
the size of your data set, modify it by making
it smaller, and try premastering again.
Can I premaster an image that is larger than
Yes. The hard drive in CD Studio is over 1Gbyte
in size. It is theoretically possible to premaster
an image that is up to 1 Gbyte in size. However,
doing so would not be practical because the
image could not be split to fit onto multiple
CDs. The maximum, practical, usable image
size, therefore, is 650 Mbytes.
What CD recorders does my Studio support?
As of June 2, 1997, Studio supports the following
Kodak PCD 225
Kodak PCD 600 (with 6x firmware installed)
Pioneer CD-WO DW-S114X