| The operational details of stand-alone CD-ROM | | | | corresponding regions on the blank CDs. This results in |
| copiers are similar to those of automatic CD copiers. | | | | the same data getting transferred onto the blank CDs. |
| The only difference between the two is the difference | | | | The CD-ROM drives are rated with a speed factor |
| between the CD and the CD-ROM. | | | | relative to music CDs: 1x or 1-speed provides a data |
| CD-ROM means CD-Read Only Memory (ROM). No | | | | transfer rate of 150 kilobytes per second in the most |
| additional data can be written on these CDs once they | | | | common data format. For example, an 8x CD-ROM |
| are recorded. The recording of CD-ROMs is done by | | | | data transfer rate would be 1.2 megabytes per |
| the vendor and is known as stamping. However, the | | | | second. |
| data from these CDs can be written on other blank | | | | CD-ROM copiers may be attached to a computer or |
| CDs using a CD-ROM copier, provided the necessary | | | | they may be stand-alone. Stand-alone CD-ROMs |
| software is available. | | | | have a hard disc of their own. These CD-ROM |
| CD-ROM copiers work on the technology called "pits | | | | copiers are designed in a tower format. Stand-alone |
| and hills." CD-ROMs are coated with an organic layer | | | | CD-ROM copiers may allow several CDs to be |
| of dye. When the CD-ROMs are written, the data is | | | | burned at once and may contain as many as 2 to 16 |
| encoded on them by burning specific parts of the | | | | unitary drives and can have speeds as high as 52X. |
| organic dye coating. These parts are called pits and | | | | So, if the requirement is to copy a master CD into |
| the remaining parts are called hills. While burning, a laser | | | | several CD-ROMs, a high-end stand-alone CD-ROM |
| head reads the pits and hills and then burns the | | | | copier may be the best solution. |
