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CD
AUDIO SPECIFICATIONS
PROGRAM TIME
The standard maximum program time is 74 minutes 40
seconds. The absolute maximum program
time is 77 minutes 00 seconds. Any tapes with program times greater than
74 minutes 40 seconds
will require additional mastering time and will incur additional costs.
The minimum program time is
1 minute 00 seconds. The minimum track duration is 3 seconds.
ACCEPTABLE SOURCES
Your production master may be in any of four formats:
CD-R disc, Sony 1630 (usually for CD only),
digital audio tape (DAT), or digital compact disc (CD). We
test your master for digital errors before
replicating and will notify you of any problems. Note that there is a $25
fee for resubmitted masters.
CD-R Disc
All CD-R masters must be recorded without interruption
in one single session and be "Red Book"
compatible (playable on standard CD players.) Submitted CD masters must
be in good condition
with no scratches or imperfections. CDR's are very easy to damage - handle
them with care. If
you must write on the disc itself, we recommend you do so in the clear plastic
center to avoid
damage to the program side. Use a high quality brand, such as Mitsui, Taiyo-Yuden
or Quantegy.
PMCD, HDCD, and Dolby Surround are also supported.
SONY 1630 Master
This format is a 3/4" U-Matic video tape that
stores your music program in digital form along with
time-code information that is used to mark track locations. The digital
sampling frequency for
a 1630 CD master must be 44.1 KHz. Other parameters: Non-drop frame SMPTE
1630 time code.
SMPTE time code on Aux. track 2. Program start >= 20 seconds (SMPTE time).
PQ burst
(optional) on Aux. track 1 (at about :15).
DAT Master
This format uses a 4mm digital tape cassette. DATs
used as CD production masters must use a
sampling frequency of 44.1 KHz throughout the entire program. Though not
as reliable as the Sony
1630 format, DAT is the preferred production master format for cassette
duplication. Please note
that there is a fee of $85 for transfers from DAT to CD-R.
Digital Compact Disc
Manufactured CDs can be used as masters to replicate
more CDs. Whenever possible, only new
unplayed CDs should be sent as masters. Even a small scratch can create
problems in digital
transfers. |
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CD-ROM
SPECIFICATIONS
Important guidelines for submitting
CD-ROM masters
Your CD-ROM project will be delayed if your
master has not been recorded properly. There are
several factors to consider when creating a CD-ROM master - please
follow these guidelines to
ensure smooth and error-free production: |
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- We will replicate your CD-R master as submitted,
so you must ensure that it runs exactly like
you want the final CD-ROMs to run. We recommend that you test
the software in as many
different machines as possible.
- We test your master for digital errors before
replicating and will notify you of any problems.
Note that there is a $25 fee for resubmitted masters.
- Groove House Records has a strict anti-piracy
policy. Make sure you have all of the proper
clearances needed for the software you are replicating.
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- Record your CD-ROM master as a single session,
disc-at-once (DAO), mode 1 disc. Note
that some burners, such as Sony and Hewlett Packard may default
to track-at-once (TAO)
mode. Be sure to check with your user manual for details.
- Most home computers now come equipped with CD
burners. Keep in mind that the quality
can vary greatly! To get the best quality master, we recommend
looking into some of the
better burners such as Plextor, LaCie and Yamaha.
- Use a high quality media brand to record your
master. We recommend Mitsui, Taiyo-Yuden,
and Quantegy. Do not use CD-RW (rewritable) discs.
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- Though Easy CD Creator for PC and Toast for
Mac (both by Adaptec/Roxio) are the most
popular programs, there are better programs out there, such as
Nero (Ahead Software) and
Gear Pro (Gear Software). Note that programs such as Easy CD Creator
also support track
at once, so remember to select the right program options when
preparing a master disc.
Whichever software you use, make sure that it supports disc at
once and allows you to
select between CD-ROM Mode 1 and CD-ROM XA.
- Do not use Adaptec/Roxio Direct CD or any other
software that uses packet writing for your
CD-ROM master. Because data is written to it a few files at a
time, a packet written CD will
havemultiple tracks and discontinuities in the data which do not
belong in a disc image
suitable for manufacturing.
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- CDs for PCs and the Windows operating systems
should be written in either ISO-9660 or
Joliet file systems. If your audience is strictly Windows-based,
you can master your CD-ROM
using Joliet. If you want to reach Windows, Macintosh, and UNIX
users, ISO 9660 Level-1 or
Level-2 will offer the best cross-platform compatibility.
- CD-ROMs designed solely for use in Macintosh
systems use the HFS structure, complete
with data forks and desktop icons.
- Hybrid discs are those that can play on
multiple platforms, including Macintosh, Windows,
UNIX, and DOS. We recommend using a product specifically designed
to handle hybrid
creation to decrease the problems associated with multi-platforms
production.
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| Here
are the basic parameters for CD-ROM (yellow book standard): |
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| Parameter |
Value |
Comments |
| Data
capacity |
682
MB |
74
minutes & 40 seconds |
| Raw
data bit rate |
1.41
MB/s |
all
bytes |
| User
data rate |
150
kB/s |
at
normal speed |
| Block
(sector) size |
2352
bytes |
|
| User
data per sector |
2048
bytes full error correction |
|
| Sector
rate |
75
sect/s |
at
normal speed |
| Sector
modes |
1
or 2 |
|
| Sector
forms |
1
or 2 |
only
with Mode 2 |
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Acceptable
Input Media: 4mm DDS, 4mm Data/DAT, 8mm Exabyte, 9-track, 3480
data cartridge, QIC
data cartridge, CD-R, CD-XA/PhotoCD, CD-I/CD-Bridge, CD+G, Enhanced
CD, Bernoulli, Jaz, Zip.
Supported Formats: ISO 9660, High Sierra, Mac-HFS,
CD Audio Hybrid, Unix-UFS, CD-ROM and Mixed
Mode disc formats.
Disc Capacity: 688 Mb (74 minutes 40 seconds).
Remember - any problems with your master will cause production delays.
Please call us if you have
any questions! |
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DVD
SPECIFICATIONS
Acceptable Input Media:
DLT (Digital Linear Tape), DVD-R (DVD-5 only): 3.95GB - 4.7GB, 8 mm
Exabyte,
or a replicated DVD disc. |
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- DLTs must contain the pre-mastered image with DDP 2.0 or higher
for all layers whether
opposite or parallel tracking. DLTs must also be recorded with
ANSI labeling. Do not write DLTs
in compressed mode. Take care not to drop DLTs - this can cause
internal damage and render
the tape unreadable.
- DVD-R is acceptable for DVD-5 only. Make sure that submitted
discs are in good condition without
scratches or imperfections.
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Disc Capacities:
DVD 5 - 4.7GB Max, DVD 9 - 8.5GB Max, DVD 10
– 9.5 GB, DVD 18 – 17 GB.
Image Tapes: Many desktop
premastering systems allow the user to simulate their DVD before
submitting it to a replication facility. These systems often allow
the creation of a tape which is an exact
image of the DVD to be manufactured. Please supply the following when
submitting an image tape:
DDP version, tape block size, tape record size, total number of DVD
sectors.
Hybrid discs: DVD-video
and/or DVD-audio files must be contained in the appropriate directories.
Check discs: Groove House Records can provide you with a final "check
disc" for testing purposes
(additional charges apply). If you decide not to order a check disc,
you will need to sign a waiver
before we can replicate.
Data Identification: Data
must be identified as DVD-5, DVD-9 or DVD-10. In case of DVD-9 and
DVD-10,
data must be further identified as layer 0 or layer 1.
CSS Encryption: Groove
House Records offers CSS (Content Scramble System) copy protection
which
prevents disc-to-disc copying. There is no additional charge for this
service. When submitting CSS
encrypted masters, please indicate whether the encryption keys are:
present on the DLT, present on a
customer-supplied floppy disc, or to be provided by Groove House Records.
If you wish us to provide the
encryption keys, please submit the following information: total number
of VTS (video title sets), total
number of VTS for each DLT (DVD-5 and DVD-10 only) , and total number
of VTS for both DLTs
combined DVD-9 only. |
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