User's Manual

ENGLISH

CDRW

(CONT.)

APPENDIX

A session is defined as an area including lead-in, program data

and lead-out.

• A CD-R recorder that supports multisession recording can

write a disc that will have multiple sessions linked

together, each containing their own lead-in, program and

lead out.

• Any multisession-supported CD reader can access the

data, whether it was written in the first session or a

subsequent session.

Contrast this to the recording structure of a pressed CD-ROM or a

CD-R written in “Disc at Once” mode that contains just one lead-

in area and one lead-out area.

WHAT IS THE RECORDING SPEED OF CD-R?

The “speed” rating of a CD-Recordable/Rewritable determines

how fast it can record data to blank CD-R media.

Speed designators, such as “1X”, “2X”, “4X” and “6X” define

multiples of the original playback speed of first generation

CD-ROM players:

• For a CD-ROM player or CD-Recordable/Rewritable, a 1X

speed translates to 153,600 Bytes per second. This is

usually rounded down to 150 Kb per second. Therefore, a

“1X” recorder writes 150 Kb per second to the CD-R

media.

• Likewise, a “4X” recorder records at 600 Kb per second.

THERE ARE SOME VARIATIONS IN MEASURING

SPEED

, BECAUSE THERE ARE RECORDING MODES THAT

PROVIDE MORE THAN

2,048 DATA BYTES PER BLOCK

(AUDIO IS RECORDED AT 2,352 BYTES PER BLOCK).

SOME CD-RECORDABLE/REWRITABLES HAVE A

DIFFERENT READING SPEED THAN THEIR RATED RECORDING

SPEED

. FOR INSTANCE, THIS “8X4X32” CD-RECORDABLE /

EWRITABLE CAN WRITE AT 8X SPEED ON CD-R, 4X SPEED

CD-RW AND READ BACK AT 32X SPEED.

NOTE:

01_LAYOUT_GB 22-11-2000 09:21 Pagina 26