Sunday, April 20, 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
Ex-Apple CEO To Sell Mobiles In India
HTC Hired Ex-Samsung Marketing Officer
Xbox One Wolrdwide Sales Cross 5 million
Samsung Works With GLOBALFOUNDRIES On 14 nm FinFET Offering
Facebook To Find Nearby Friends
Console Sales Lift AMD's First Quarter Results
LG Expands 'Second Screen' TV Ecosystem With Open-Source SDK
Amazon Announces Kindle Service For Samsung Devices
Home > Hardware Reviews > Optical Storage > DVD Recorders 8x

Monday, June 21, 2004
Ricoh MP5308D

3. CD Error Correction Tests

Ricoh MP5308D DVD±R/RW Recorder - Page 3

CD Error Correction Tests

In the following tests we check the drive's behavior when it comes to reading scratched / defective discs. The test discs we use are the ABEX series from ALMEDIO.

- ABEX TCD-721R

Errors total
Num: 3205447
Errors (Loudness) dB(A)
Num: 149658
Avg: -75.2 dB(A)
Max: -18.1 dB(A)
Error Muting Samples
Num: 9769
Avg: 1.0 Samples
Max: 5 Samples
Skips Samples
Num: 20
Avg: 6.0 Samples
Max: 6 Samples
Total Test Result
65.0 points (out of 100.0 maximum)
C2 Accuracy
99.6 % (out of 100.0% maximum)

Ricoh performed poorly with the ABEX TCD-721R. The drive's average error loudness was at -75.2 dB(A) and the total score of 65 points isn`t good. The total error count of 3205447 is very high and there were 20 skipped samples. We must also note that C2 accuracy reached 99.6%, an almost perfect score.

- ABEX TCD-726

Errors total
Num: 4278
Errors (Loudness) dB(A)
Num: 7856
Avg: -83.1dB(A)
Max: -56.5 dB(A)
Error Muting Samples
Num: 72
Avg: 1.0Samples
Max: 1 Samples
Skips Samples
Num: 0
Avg: 0.0Samples
Max: 0 Samples
Total Test Result
82.3 points (out of 100.0 maximum)
C2 Accuracy
100 % (out of 100.0% maximum)

Ricoh had better performance with ABEX 726 disc with total score of 82.3 %.

- CD-Check Audio Test Disc

The CD-Check Test Disc is a very useful tool for evaluating the Sound Reproduction / Error correction capabilities of a CD player. The disc offers a signal combination with disc error patterns to rate the drive's abilities to read music and reproduce it completely. Five tracks on the disc contain a sequence of progressively difficult tests. These tracks are referred as Check Level-1 through Check Level-5.

The files are reproduced (played) through a software multimedia player (i.e. Windows Media Player). Each level is considered as passed, if the tone coming out from the speakers is smooth, continuous without interruptions, skipping or looping. The higher the Check Level passed, the more reliable the sound reproduction of the tested device.

Error Level
1
2
3
4
5
Plextor PX-708A
5/5
5/5
0/5
0/5
0/5

The drive passed only the first two Check Levels of the test. The performance reveals lower than average sound reproduction and error correction. The fifth level includes an error size of 1.500mm, where the drive produced many audible clicks.

- Conclusion

The overall performance of the Ricoh MP5308D was rather poor, since when the drive encounters even small scratches produces large spikes and can't correct them. NEC should really improve the drive's performance, by fine tuning the firmware.




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 .