HLDS Specifications
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Feature Description
Manufacturer HLDS
Model GCC-4244N
Host interface ATAPI compliant (X3T9.2/791D and SFF-8020 Rev 2.6)
SFF-8080 Rev 1.2 , MMC-2 ( MMC Spec for CD-R/RW)
Read function
Applicable discs
  • DVD-ROM single Layer 4.7GB, dual Layer 8.5GB
  • DVD-R: 3.95 / 4.7 GB
  • DVD-RW: 4.7 GB
  • DVD-RAM: 2.6 / 4.7 GB
  • CD-ROM Mode-1
  • CD-ROM XA
  • CD-Audio
  • Mixed Mode CD-ROM (Audio and Data Combined)
  • Photo-CD (Single and Multi-session)
  • CD-I, Video CD
  • CD-Plus / CD-Extra, CD-Text
  • CD-R disc (Conforming to Orange Book Part 2)
  • CD-RW disc (Conforming to Orange Book Part 3)
Write function
Applied format
  • CD-ROM Mode-1
  • CD-ROM XA
  • CD-Audio
  • Mixed Mode (Audio and Data Combined )
  • CD-I, Video CD
  • CD-Plus/ CD-Extra, CD-Text
Writing method

  • Disc at once (DAO)
  • Session at once (SAO))
  • Track at once (TAO))
  • Variable packet writing)
  • Fixed packet writing)
  • Multi-session
Cache memory 2 MB
Disc diameter 120 mm, 80 mm
Data capacity
User data / block
  • DVD-ROM (Book A, B)
  • 2,048 bytes/block
  • CD (Yellow Book)
  • 2,048 bytes/block (Mode1 and Mode2 Form1)
  • 2,336 bytes/block (Mode2)
  • 2,328 bytes/block (Mode2 Form2)
  • 2,352 bytes/block (CD-DA)
Region Playback Control (RPC) Phase2, no region
Read/write rotational speed
Read DVD-ROM
  • Single Layer - 3.3X to 8X (CAV): approximately 4,710 rpm
  • Dual Layer - 3.3X to 8X (CAV): approximately 5,180 rpm
  • CSS Title - 1.7X to 4X (CAV): approximately 2,600 rpm
Read DVD-R 3.95 GB - 1.7X to 4X (CAV): approximately 2,600 rpm 4.7 GB - 1.7X to 4X (CAV): approximately 2,360 rpm
Read DVD-RW 4.7 GB - 1.7X to 4X (CAV): approximately 2,360 rpm
Read DVD+RW 4.7 GB - 1.7X to 4X (CAV): approximately 2,360 rpm
Read CD-ROM 10.3X to 24X (CAV): approximately 4,860 to 5,670 rpm
Read CD-R 10.3X to 24X (CAV): approximately 4,860 to 5,200 rpm
Read CD-RW 8.6X to 20X (CAV): approximately 3,900 to 4,400 rpm
Read CD-DA (DAE) 8.6X to 20X (CAV): approximately 3,900 to 4,400 rpm
Read CD-DA (Audio Out) 4.3X to 10X (CAV): approximately 2,020 to 2,360 rpm
Read CD-I / Video CD 4.3X to 10X (CAV): approximately 2,020 to 2,360 rpm
Write CD-R 4X CLV, 10X CLV, 24X (10X/16X/24X) ZCLV
Write CD-RW Normal Disc - 4X CLV
High speed Disc - 4X, 10X CLV
Rotational speed (CD-R/RW)
  • 4X CLV: approximately 800 to 2,020 rpm
  • 10X CLV: approximately 2,000 to 5,050 rpm
  • 24X ZCLV: approximately 2,000 to 5,600 rpm
Sustained data transfer rate
Read DVD-ROM Single Layer - 11.08 MBps (8X) maximum
Dual Layer - 11.08 MBps (8X) maximum
Read DVD-R 3.95 GB to 5.54 MBps (4X) maximum
4.7 GB to 5.54 MBps (4X) maximum
Read DVD-RW 4.7 GB to 5.54 MBps (4X) maximum
Read DVD+RW 4.7 GB to 5.54 MBps (4X) maximum
Read CD-ROM 3,600 KBps (24X) maximum
Read CD-R 3,600 KBps (24X) maximum
Read CD-RW 2,250 KBps (20X) maximum
Write CD-R/RW
  • 4X CLV 600 KBps (Mode-1)
  • 10X CLV 1,500 KBps (Mode-1)
  • 16X CLV 2,400 KBps (Mode-1)
  • 24X CLV 3,600 KBps (Mode-1)
Burst transfer rate 16.6 MBps maximum (DMA MW Mode 2)
16.6 MBps maximum (PIO Mode 4)
Access time DVD-ROM - average: 120 ms typical
CD-ROM - Average: 110 ms typical
Spinup time
DVD-ROM 7 seconds typical (time to drive ready mode from power on)
DVD-RAM 20 seconds typical (time to drive ready mode from power on)
CD-ROM 10 seconds typical (time to drive ready mode from power on)
Data error rate
  • DVD-ROM 1Block / 10 15 bits
  • CD-ROM ECC On 1Block / 10 12 bits
  • ECC Off 1Block / 10 9 bits
Buffer memory size 2 MB
Ambient temperature Operating Read 5 to 50° C
Storage/Transportation -30 to 60° C
Source voltage +5 V ±5% Ripple less than 100 mVp-p
Dimensions 128 × 12.7 × 129 mm