Wednesday, September 17, 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
Blackberry Introduces Elegant Porsche Design P9983 Smartphone
Club 3D Launches 4K Docking Station
Logitech Gives You Control of Your Smart Home with the New Harmony Living Home Lineup
New iPads And OS X Yosemite Announcements Expected Next Month
Opera Max Data-savings App to be Embedded into MediaTek's LTE SoCs
Nero 2015 Supports Burning via Smartphone, WiFi Streaming
PMC Delivers 16-port SAS and SATA Storage Controllers
Google, Facebook and Twitter Collaborate On TODO Project
Home > Hardware Reviews > Optical Storage > DVD Recorders Double Layer

Wednesday, May 04, 2005
LiteON SOHW-1673S

4. DVD Error Correction Tests

In the following tests, we examine the DVD reading capabilities of the LiteOn SOHW-1673S drive with scratched / defective DVD media. For the tests we used CDVD Benchmark and Nero CDSpeed. The reference test media comes from ALMEDIO.

- Single Layer media
ABEX TDR-821

This is a single sided, single layer DVD-ROM with 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 1673S was capable of reading the 821 test media reporting some speed fluctuations near the completion of the reading, due to the drives correction mechanism. Notice that at this point the speed was near 16X.

ABEX TDR-825

This is also a single sided, single layer DVD-ROM of 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 instead, defective areas of dimensions ranging from 0.5 to 1.1 mm. There are also fingerprints sized between 65 and 75 micrometers.

Once again good reading and would have been a great one if not for the drop in speed right before the second defective area with the fingerprints.

- Dual Layer media
ABEX TDR-841

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

The performance here is also good and it would be absolute perfect if not for the speed drop at the end of the second defect.

ABEX TDR-845

This test disc is a single sided, dual layer DVD-ROM disc with a capacity of 8.5GB. The only difference between the TDR-845 and the TDR-841 discs is that the first includes defective areas and fingerprints. The dimensions of the defective areas ranges from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micrometers.

This time the transfer rate graph was very good. No errors reported.

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 on the TDV-540 series which is designed for inspection and adjustment of DVD-VIDEO players. The disc checks the layer switch operation from layer 0 to layer 1 and also includes test pictures and test signals for DVD sound files. The current TDV-541 also checks the error correcting capabilities of the drive and includes scratches from 0.4 to 3.0 mm.

click to enlarge!

What we have here is a nearly excellent performance with a test disc which usually produces average results with many common drives. But in this case, we can only see a wobble in speed after the start of the second layer. Nicely done by the 1673S.

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 also has 65 - 75 micrometer fingerprints.

click to enlarge!

Excellent, smooth graph.

- Conclusion

With what can be classified as a better than average error correction mechanism, we move on to the protected disc tests of this review of the 1673S burner.




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 .