Buffer; Cd Formats Supported; Recording Methods; Applications - Sony Spressa CRX0811 User Manual

The drive can also record CD-R discs at quad speed (4X) as
well as record CD-RW and CD-R discs at double speed (2X),
and even record CD-R discs at single speed (1X).
The drive is a multi-function device. Since the drive is also
capable of reading at up to 32X Max. (4,800 kilobytes per
second) it is a good general use CD-ROM drive as well as
recorder.
The speed at which a CD-ROM is written does not affect
the speed at which that CD-ROM can be read. For example,
a CD-ROM which was written at 2X can be read at 1X, 2X,
4X, 8X, 12X, 24X and so on.

Buffer

The Spressa CD-RW Recorder drive has a two or four
megabyte data buffer, which reduces buffer underruns
when writing to CD-RW and CD-R media with some
software. Buffer underrun is a condition where the drive's
buffer runs out of data while the CD-R or CD-RW media is
still being written. The recording of a CD is a system
intensive process with some software, and the recorder
needs a constant stream of data. A buffer underrun occurs
when the data stream to the recorder is not fast enough to
keep the recorder's buffer full, causing the recording to abort.

CD Formats Supported

The drive records these popular CD formats:
• CD-Digital Audio; the format used for audio CDs,
playable on audio CD players.
• CD Extra; Audio and data in multi-session format.
• CD TEXT; Audio CD with album name; song titles
encoded. CD TEXT information is displayed on CD
TEXT Compatible CD Players and CD-ROM drives.
• CD-ROM (Mode 1); the format used for most CD-ROM

applications.

4 CD-RW Recorder User's Guide
• CD-ROM XA (Mode 2 Form 1 and Mode 2 Form 2);
CD-ROM Extended Architecture. This standard was
created for smoother playback of multimedia content.
• CD-I* (Mode 2 Form 1 and Mode 2 Form 2), CD-I Ready;
CD-Interactive is used for home entertainment systems.
• CD-G
• Karaoke CD
• †CD-Bridge; a format for a mixture of Kodak Photo
CDs and Video CDs, playable on TV set top players
and personal computers.
• †Photo CD (single and multisession); Kodak Photo CD.
• UDF
• †Video CD; playable on TV set -top video CD Players
and most DVD systems.
* The drive does not have the necessary audio circuitry
and decoding functions for CD-I playback, but can
read and record.
† With additional software.

Recording Methods

The drive has the capability to use several different
recording methods. The descriptions of these methods in
this manual are overviews of the subject. The methods are
covered in greater detail in the software documentation.
• Disc at Once; this is a recording method in which the
entire disc is written in a single pass. Data cannot be
added at a later time.
• Session at Once; a complete session is written in a
single pass (one at a time). Multiple sessions are
typically recorded in Track at Once mode, where the
track is written first, then the session information.
• Track at Once; a track can be copied to the disc
incrementally (one at a time).
• Multi–session; several sessions can be written to a disc.
Each session has at least one track.
CD-RW Recorder User's Guide 5