CD-R means Compact Disc-Recordable where data is burned directly to the blank disc one at a time. CD-Rs are most cost effective in low runs.

What is a CD-ROM?

CD-Rom means Compact Disc Read Only Memory where data is stamped using a high speed plastic injection molding process. CD-ROMs are most cost effective in larger numbers.

What are the common terms and formats for CDs?

ISO9660: the original file CD data format uses a DOS file format of 8 characters followed by a dot and a 3-character extension.

JOLIET: is based on ISO9660 but allows additional characters, including spaces, and names up to 256 characters long. You should still include only one dot immediately before the 3-charcter extension.

HYBRID (PC/Mac): uses MAC HFS format and PC ISO9660 or Joliet on the same CD, allowing the one CD to be played in either a PC or a Mac.

MULTI-SESSION: Data is recorded to a single CD-R in several sessions. A CD-R recorded in a multi-session format can not be used as a master to replicate CD-ROMs.

MODE 1: uses 2048 bytes for user data plus a third layer of error detection. This Mode provides the highest integrity for computer data.

MODE 2: uses 2336 bytes for user data with no third layer of error detection. This mode was designed for multi-media graphics and video. The most common format is CD-ROM-XA.

PRE-GAP/ POST-GAP: empty lengths of track which are placed before and after the data track.
Why do I need a white flood coat when silk-screening in process 4 colors?

The short answer is to avoid a color shift. Graphics programs such as Illustrator or Quark are preset to produce films based on the assumption that the art is going to be printed on white paper. CDs and DVDs are plastic, not paper, and silver, not white.

What is a Glass Master?

When replicating CDs or DVDs, the data on your master is converted into pits that are etched into a piece of glass. This glass master is then metallized and used to create metal stampers for the CD/DVD injection molding machines.

What is a DVD?

DVD stands for Digital Video Disc. Like the audio CD, it has been adapted by the digital world to do more than it was orignally intended. Now DVDs are used for video, audio and data.

What are the DVD formats?

TYPE LAYERS SIDES CAPACITY / TIME
• DVD-5 single layer one-sided 4.7 GB / 135 min
• DVD-9 double layer one-sided 8.5 GB / 245 min
• DVD-10 single layer double-sided 9.4 GB / 270 min
• DVD-18 double layer double-sided 17 GB / 490 min

What is a SMPTE?

Society of Motion Picture and Television Engineers, SMPTE, is a time code widely used in the motion picture, television, and audio production industries. Full time code is in the format of hours: minutes: seconds: frames.

What is a MPEG?

MPEG stands for Motion Picture Experts Group. MPEG1 is a video compression program used for CD-ROMs. MPEG2 is a video compression program used for DVDs.
What is an IPR form?

All CD-ROM replication projects require Intellectual Property Rights Form filled out, signed and submitted with the CD-R Master. Corporate Disk Company uses the International Recording Media Association’s (IRMA) form.