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Home > Hardware Reviews > Optical Storage > DVD-ROM

Thursday, February 17, 2005
Aopen vs Toshiba

1. Aopen DVD1648/AAP PRO

Aopen vs Toshiba - Page 1

Aopen DVD1648/AAP PRO

Taiwanese manufacturer, AOpen, has expanded its product line to include motherboards, graphics cards, sound cards and other PC peripherals.

Recently, we receive the latest DVD-ROM from AOpen, the DVD1648/AAP PRO.

- Aopen Advanced Technology

Support Double Layer DVD format
The double layer DVD uses two layers for data storage, which are separately by a spacer.Each layer has a metal reflector on top of it to reflect the laser's light. The advent of this technology nearly doubles a DVD's capacity from 4.7GB to 8,5GB
Black Disc Tray Design
Aopen black disc tray design supports both horizontal/vertical mounting. Black disc tray absorbs the unnecessary signals and get more accurate signal. Achieve a significantly better reading quality
Universal Bezel
Chamaleon Bezel
The owner can choose between three different colored bezels which are all included in the retail package
Silent Technology
To ensure users get the most relaxed and quiet working environment, AOpen designs mechanical structures made especially for controlling noise and vibration
ABS ( Auto Balance System)
ABS can effectively decrease the vibration under the high-speed rotation and improve the quality of information reading and writing sharply

Noise- control System ( NCS)
NCS is implemented by improving bearing, disc tray and foam damping washers design so as to reduce wind noise.

- 16X DVD-ROM Transfer Rate Up To 22160 KB/sec
- 48X CD-ROM Transfer Rate Up To 7200 KB/sec
- 512KB buffer memory inside Firmware version upgradeable
- High Data Transfer Rate and Quick Seek Time
- Supported DVD and CD Formats Including CD-R/RW and DVD-R/RW
- Supported IDE / ATA-33
- Supported IDE / MW-DMA Mode 2
- Supported IDE / Ultra-DMA 33 Mbytes/sec
- Supports audio digital output (S/PDIF)
- Vertically and Horizontally Use

- Specifications


ATA-33 (33.3 MB/sec)
Ultra-DMA Mode-2
PIO Mode-4 (16.6MB/sec)


CD-ROM : 48X

Disc Format

CD-RW ((Multi-Read))
Video CD

Access Time

CD-ROM : 100 ms

DVD-ROM : 110 ms

Sustained Data Transfer Rate

CD-ROM : 48X MTRP 7200 KBytes/sec

DVD-ROM : 16X MTRP 21632 KBytes/sec

Disc Storage Capacity

CD-ROM(Mode 1) : 650 MB
CD-ROM(Mode 2) : 748 MB
DVD-ROM(Dual Layer) : 8.5 GB
DVD-ROM(Single Layer) : 4.7 GB

Data Buffer Size

512 KB


100,000POH (25% duty)

Audio Specification

Line Output: : 0.5 Vrms Typ. (RL = 47KOhm)
Headphones: : 0.5 Vrms Typ. (RL = 32 Ohm)

Power Requirement

5V+ - 5%, 12V + - 10%


-35°C ~ +70°C
0°C ~ +45C (operating


10% ~ 98% R.H.
20 ~ 80 % RH (operating)


with : 149 mm
Height : 42 mm
Deep : 188.4 mm


Less than : 1kg

Mount Position

Horizontal / Vertical

EMI Requirement

EMI Requirement (FCC-B, CE, C-tick, BSMI)

Safety Requirement

Safety Requirement (UL, CUL, DHHS, TUV, NEMKO)

The drive also uses the RPC II region control, allowing a user to change the drive's region at most 5 times.

- The package

The retail box includes the drive, one audio cable for internal connection with the motherboard, mounting screws, quick installation guide and a CD-ROM with PowerDVD 5 software and drivers. There are also two extra front bezels included, one black and one silver. Hence the name "Chameleon". No IDE cable present.

On the front, there is only the DVD-ROM logo located on the right and the the brand name on the left. The activity indicator led is located in the middle while the emergency eject hole is on the right. On the right there is also the eject button.

On the rear panel you can see the analogue and digital outputs (SPDIF), the IDE connector and the power input.

Removing the screws and opening the drive's cover voids the drive's warranty. For reference reasons, we post the following pictures. You can click on the mainboard picture for a higher resolution image:

- Installation

The drive was installed as secondary master and WindowsXP recognized it as "AOPEN DVD1648/AAP PRO". The drive arrived with firmware v1.01.

- Testing software

In order to perform our tests we used:

  1. Nero CD-DVD Speed v3.61
  2. CDVD Benchmark v1.21
  3. ExactAudioCopy v0.9 beta5
  4. Nero Info Tool v2.27
  5. DVD Decrypter
  6. DVDInfoPro v3.47

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