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CD-ROM FAQ:
May I have my masters back?
The process of mastering includes the recording of the original
data onto a glass master in preparation for making replicate copies.
The glass itself is carefully polished and reused. Therefore, there
is no master per se to keep. The stamper used to make your discs
is kept, usually for six months, in case you want to reorder at
a later date. The stamper is a tool for our use and cannot be used
by another manufacturer. If you would like us to keep the stamper
for more than six months it can be arranged for a nominal charge.
How
do you count turnaround?
If you provide data that is ready to master, the day your order
arrives at the plant is day "0". The following day is "Day 1", etc.
Your order will ship on the day's turn you've requested. Orders
must be pre-scheduled. One day turn requires pre-scheduling three
days in advance. Pre-mastering is in addition to turnaround.
How do I create a label for my disc?
You have several options. You can create your label on a computer
using desktop publishing software. SPA will create the film necessary
to silk-screen or offset print the disc surface. If you need help
with the design, ask your Account Representative. We have provided
a template and film specifications
to assist in your design process.
What input media do you accept?
Preferred inputs include: 8mm tape; 9 track tape; 4mm DDS DAT tape;
CD WORM. We can also accept Syquest cartridge, QIC 40 and QIC 80
tapes, SCSI hard disks, and floppy diskettes. The
specifications for CD-ROM are available to help you decide which
is the best method for you.
What is the maximum amount of data you
can put on a disc?
Normal capacity is 654.7 Mbytes, which is 335,250 2k sectors. This
is equivalent to 74 minutes 30 seconds. The amount of data on a
disc is controlled by several factors: space, track pitch, speed
or rotation. It is possible to record and replicate somewhat more
data on a disc than the "normal" capacity and still remain within
yellow book specifications, but some drives have trouble reading
data from these discs.
Can you make a disc that will work on
both PC's and Mac's?
Yes, depending on the amount of data you have you can either create
two partitions- one in HFS for Mac and one in ISO 9660 for DOS or
you can make the entire disc an ISO 9660 disc, which is readable
by both with the correct peripherals.
What kind of packaging is available?
The sky's the limit! Your Account Representative will work with
you on the best packaging, depending on your application.
CD-ROM Manufacturing Process
CD-ROM Input Specifications
Packaging and Labeling Specifications for CD-ROM
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