I do not seem able to rip audio CDs at 40x. How can I reach the maximum 40x audio
ripping speed?
●
It’s important to understand that your new CRW2100 series CD-RW recorder could
achieve the 40x maximum ripping speed via CAV (Constant Angular Velocity - see page
6 of the Quick Start Guide for details),which is increasingly becoming common in most
top performing CD-ROM and CD-RW recorders today. What it means is that audio rip-
ping in the most inner portion of the disc starts at about 16x and progresses further
until reaching 40x at the outer portion of the CD. Hence, while attempting to calculate
the speeds achieved, one should calculate an estimated time. For example, if you try to
calculate an average rip speed for this CAV-equipped recorder, depending on system
configurations and the quality of the audio disc used, you will be able to reach an aver-
age rip speed somewhere in the 30x neighborhood (which, in practice, is very fast)
allowing you to rip a full disc in about 3 minutes. But, if you would like to measure the
maximum rip speed achieved, you will notice that reaching 40x will happen towards the
very end of the disc.
10. Specifications
Writing Methods
Disc-at-Once (DAO)
Session-at-Once (SAO)
Track-at-Once (TAO)
Packet writing
Writing/Reading Speed
Writing
CD-R
1X, 4X, 6X, 8X, 12X (CLV)
16X (12X – 16X Partial CAV)
CD-RW
2X, 4X, 8X (CLV)
Reading
40X (max) Full CAV
Note) • DATA: 40X (max.)
• CD-DA: 40X (max.) in audio extraction
• CD-DA: 1X only in audio play
• Video CD: 10X (max)
• Disc (session closed): 40X (max)
(12 max for packet writing)
• Disc (session not closed): 12X (max)
CD-R
1X, 4X, 6X, 8X, 12X, 16X (12X – 16X Partial CAV) writing:
Write Once discs specified in Orange Book Part II Ver. 3.1.
Note) Use a “high-speed writing” compatible CD-R disc for 8X
or faster writing.
•
CD-RW
2X writing/rewriting: Rewritable discs specified in Orange
•
Book Part III Vol. 1 Version 1.0
2X or 4X writing/rewriting: Rewritable discs specified in
•
Orange Book Part III Vol. 1 Version 2.0
4X, 8X, 10X (4x – 10X Full CAV) writing/rewriting:
Rewritable discs specified in Orange Book Part III Volume 2
Version 1.0
Data Capacity
700MB (79 min.)
650MB (74 min.)
550MB (63 min.)
Data Transfer Rate
1X: 150 KB/sec.
12X: 1,800 KB/sec.
2X: 300 KB/sec.
16X: 2,400 KB/sec.
4X: 600 KB/sec.
24X: 3,600 KB/sec.
8X: 1,200 KB/sec.
32X: 4,800 KB/sec.
10X: 1,500 KB/sec.
40X: 6,000 KB/sec.
•
Burst Transfer Rate
•
Programmed I/O mode 4: 16.7MB/sec.
•
Multiword DMA mode 2: 16.7MB/sec.
Ultra DMA mode 1: 25MB/sec.