Monday, November 24, 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
Industry Concerned BT Holds A Network Monopoly Position
Samsung to Phase Out Mobile App Service
Apple To Donate Part of App Sales Profit To Support Fight Against AIDS
Regin Trojan Enables Stealthy Surveillance: Symantec
ASTC Says 100 TB HDDs Coming in 2025
Alienware Alpha PC Gaming Console Now Shipping
Samsung Files ITC Complaint Against Nvidia
Europe To Ask Google Unlink Its Commercial And Search Services
Home > Hardware Reviews > Optical Storage > DVD Recorders Double Layer

Wednesday, February 15, 2006
Memorex 16X-DDL-IN

4. DVD Error Correction

In the following tests, we checked the DVD reading capabilities of the Memorex 16X drive with scratched / defective DVD media. For our 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 a 4.7GB capacity, and its surface has an artificial scratch varying in dimensions from 0.4 to 3.0 mm.

The following transfer rate picture comes from the CDVD Benchmark v1.21 transfer rate test.

A lot of fluctuations with this test disc. Fortunately, the test finished successfully and no error were reported.

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, the only difference being that there are no scratches on it. Instead, there are defective areas, ranging in dimensions from 0.5 to 1.1 mm.

There are also fingerprints sized between 65 and 75 micrometers.

Near perfect performance achieved with this disc.

- Dual Layer media

ABEX TDR-841

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

The Memorex 16X, performed excellently with the specific test disc. Artificial scratches, ranging in dimensions from 0.4 to 3.0mm are not a problem for the drive.

ABEX TDR-845

The disc is a single sided, dual layer DVD-ROM disc of a 8.5GB capacity. The only difference between the TDR-845 and the TDR-841 is that the former includes defective areas and fingerprints.

The dimensions of the defective areas range from 0.5 to 1.1 mm and the fingerprints are sized from 65 to 75 micro meters.

Smooth reading speed indicating excellent performance. Again, no errors were 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 was designed to inspect and adjust DVD-VIDEO players. The disc checks the layer switch operation from layer 0 to layer 1 and also includes test pictures and test signals on DVD sound files.

The current TDV-541 also checks the error correcting capabilities of the drive. It also includes scratches from 0.4 to 3.0 mm.

Untidy speed graph, but the procedure finished successfully.

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 meter fingerprints.

Excellent reading from the Memorex drive. The artificially embedded dots and fingerprints were not a problem for the drive's error correction mechanism.

- Summary

The Memorex, being equipped with a NEC chipset, has a very good error correction mechanism and managed to read all of our discs successfully, without errors. However, we weren't satisfied from its performance with the ABEX TDR-821 and TDV-541 test discs.




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 .