Thursday, July 31, 2014
Search
  
Most Popular
Hardware Reviews
Optical Storage
WEB Reviews
Seagate Enterprise Capacity 3.5 V.3 4TB SAS 6Gb/s HDD Review
OCZ Vector 256GB SSD Review @ Custom PC Review
Gigabyte F2A85XM-D3H
NZXT Phantom 630
Auvio Bluetooth Portable Speaker Review
Corsair H90 CPU Cooler Review
BIOSTAR Hi-Fi Z77X (Intel Z77) Motherboard Review
Noctua NH-L9i Cooler Review on Technic3D
Breaking News
Samsung Q3 Sales and Profits Down despite Galaxy S5 launch
Apple May lay Off People at Beats: report
Japanese Giants Form JOLED Company To Compete With LG, Samsung
BitTorrent U Secure Online Calling Software Bleep
Fujitsu Semiconductor and ON Semiconductor Announce Foundry Agreement
Kaleidescape Joins the One-Blue Licensing Program
AMD Opteron 64-Bit ARM-Based Developer Kits Now Available
Samsung Galaxy Note 4 Coming On September 3
Home > Hardware Reviews > Optical Storage > DVD Recorders Double Layer

Tuesday, June 08, 2004
LiteOn SOHW-832S

4. DVD Error Correction Tests

LiteON SOHW-832S Dual DVD±RW Recorder - Page 4

DVD Error Correction Tests

In the following tests we examined the DVD reading capabilities of the 832S drive with scratched / defected DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed . The reference test media come from ALMEDIO.

- Single Layer media
ABEX TDR-821

This is a single sided, single layer DVD-ROM with a 4.7GB capacity, and its surface has an artificial scratch of dimensions varying from 0.4 to 3.0 mm. The following transfer rate picture comes from the CDVD Benchmark v1.21 transfer rate test.

The LiteOn SOHW-832S read the disc at 12X CAV and the scratched area did not affect the process. The disc was read accurately and no read errors were reported. The performance reveals high error correction capabilities with scratched single layer DVD-ROM discs.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of a 4.7GB capacity. The data structure of the disc is exactly the same as that of the TDR-821, with the difference that there are no scratches on it but defected areas of dimensions ranging from 0.5 to 1.1 mm. There are also fingerprints sized between 65 and 75 micrometers.

As in the previous test, the disc was read without any "read errors". There was a small drop in reading speed just before the fingerprint defective area, but the test was finished successfully.

- Dual Layer media
ABEX TDR-841

This is a 8.5GB dual layer, single sided DVD-ROM disc with artificial scratches of dimensions ranging from 0.4 to 3.0mm, in both layers.

The drive didn't have any major problems as the above graph shows.

ABEX TDR-845

The disc is a single sided, dual layer DVD-ROM disc of a capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 is that the first includes defected areas and fingerprints. The dimensions of the defected areas range from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micro meters.

Here we notice the same behavior as with the single layer disc. When the drive enters the fingerprint defective area, it drops reading speed for a while but quickly regains speed and finishes the test without any problems.

ABEX TDV-541

The TDV-541 is a single sided, dual layer DVD-VIDEO disc, with a capacity of 8.5GB.The disc is based upon the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The discs check the layer switch operation from layer 0 to layer 1 and also include test pictures and test signals for DVD sound files. The current TDV-541 checks also the error correcting capabilities of the drive and includes scratches from 0.4 to 3.0 mm.

Click for the full graph!

The reading process started at 3.54X and reached 8.47X at the 4.0GB point, where the drive changed layer and reduced its reading speed till the end. No serious problems were noticed, very small glitches but the result is good.

ABEX TDV-545

The TDV-545 disc is based on the TDV-540 series. It is a single sided, dual layer DVD-VIDEO disc with a capacity of 8.5GB. The TDV-545 includes artificial black dots on the data surface, sized from 0.4 to 1.0 mm. It has also 65 - 75 micro meters fingerprints.

Click for a full graph!

Black dots and fingerprints on the disc's surface did not create any reading problems, and the drive finished the task successfully.




Get RSS feed Easy Print E-Mail this Message


 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .