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Reference Scanning
Reference ScanningReference Scanning
Reference Scanning
Velocity
VelocityVelocity
Velocity
1.2 m/s (CD); 3.49 m/s (DVD SL); 3.84 m/s (DVD DL)
Read Only Disc
Read Only DiscRead Only Disc
Read Only Disc
Parameters
ParametersParameters
Parameters
Formats and Modes
Formats and ModesFormats and Modes
Formats and Modes
Supported
SupportedSupported
Supported
CD-ROM – Mode 1; CD-ROM XA-Mode 2
(forms 1 and 2); CD-Bridge; CD digital audio;
CD Extra; CD-I – Mode 2 (forms 1 and 2) and
CD-I-Ready; Photo CD (single and multi-
session); video CD; DVD (single- and double-
layer); DVD-R; DVD-RW; DVD-RW Multi-Border;
DVD+R; DVD+R Multi-Session , and DVD+RW
Capacity
CapacityCapacity
Capacity
180 MB (mode 2, 8 cm); 540 MB (mode 1, 12
cm); 650 MB (mode 2, 12 cm); 700 MB (Mode
2, 12 cm); 4.7 GB (DVD-5); 8.54 GB (DVD-9);
9.4 GB (DVD-10)
Block Size
Block SizeBlock Size
Block Size
Mode 1 – 2,048 and 2,352 bytes; mode 2, form
1 – 2,048; 2,328; 2,336; 2,340 and 2,352
bytes; mode 2, form 2 – 2,328; 2,336; 2,340
and 2,352 bytes; CD-DA – 2,352 bytes; DVD-
2,048 bytes
Writeable Disc
Writeable DiscWriteable Disc
Writeable Disc
Parameters
ParametersParameters
Parameters
Disc Type
Disc TypeDisc Type
Disc Type
CD-R and CD-RW
Write Methods
Write MethodsWrite Methods
Write Methods
Disc at Once, Track at Once, Session at Once,
Variable Packet, Fixed Packet
Format and Modes
Format and ModesFormat and Modes
Format and Modes
Supported
SupportedSupported
Supported
CD-ROM (mode 1); CD-ROM XA (mode 2,
forms 1 and 2); CD digital audio, CD-I (mode 2,
forms 1 and 2); video CD; CD-Bridge; Video CD
Capacity
CapacityCapacity
Capacity
180 MB (mode 2, 8 cm); 540 MB (mode 1, 12
cm); 650 MB (mode 2, 12 cm); 700 MB (mode
2, 12 cm)
Block Size
Block SizeBlock Size
Block Size
CD-DA – 2,352 bytes; mode 0 – 2,336 and
2,352 bytes; mode 1 – 2,048 and 2,352 bytes;
mode 2 – 2,336 and 2,352; mode 2,
form 1 – 1 ,048 and 2,352 bytes; mode 2,
form 2 – 2,324 and 2,352 bytes
Access Times
Access TimesAccess Times
Access Times
(typical reads, including
settling)
Random DVD
Random DVDRandom DVD
Random DVD
< 140 ms (typical)
Random CD
Random CDRandom CD
Random CD
< 125 ms, (typical)
Full Stroke DVD
Full Stroke DVDFull Stroke DVD
Full Stroke DVD
< 250 ms (seek)
Full Stroke CD
Full Stroke CDFull Stroke CD
Full Stroke CD
< 210 ms (seek)
Maximum Data Transfer
Maximum Data TransferMaximum Data Transfer
Maximum Data Transfer
Rates
RatesRates
Rates
CD-R write
CD-R writeCD-R write
CD-R write
7200 KB/s (48X) Max
CD-RW write
CD-RW writeCD-RW write
CD-RW write
1500 KB/s (10X) Max
CD-ROM, CD-R,
CD-ROM, CD-R,CD-ROM, CD-R,
CD-ROM, CD-R,
CD-RW read
CD-RW readCD-RW read
CD-RW read
7200 KB/s (48X) Max
DVD ROM read
DVD ROM readDVD ROM read
DVD ROM read
21,632 KB/s (16X ) Max
QuickSpecs
HP Compaq Business Desktop dc7100 Series
HP Compaq Business Desktop dc7100 SeriesHP Compaq Business Desktop dc7100 Series
HP Compaq Business Desktop dc7100 Series
Technical Specifications - Optical Storage
DA - 11948 North America — Version 33 — January 31, 2006
Page 46