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Home > Hardware Reviews > Optical Storage > 16x CD-RW

Sunday, February 17, 2002
LiteOn LTR-16101B CD-RW

2. Data Tests

Lite-On LTR-16101B IDE CDR-W - Page 2

Data Tests

Test Method
- SCSI Mechanic v3.0x: This was used to compare the Lite-On's  I/O performance against other various CDR-W drives (see charts). We used a pressed CD containing PlexTools v1.08 for all of the tests.
- CD Speed 99 v0.80 also used to check the drive performance with pressed CDs. For that test, we used PlexTools v1.08 pressed CD.

- SCSI Mechanic v3.0x results

The Lite-On drive had an average reading performance in the "Average Random I/O" test result. The drive gave back around 660kb/s, which is the third best performance in the particular test. In the "Average Sequential I/O", the drive performed very good and got the second place behind the PleXWriter PX-W1610A with 4582kb/s. Finally, yet importantly, the drive's internal reading caching seems performing in the same levels with Sanyo and Teac and much lower than what Plextor drive can do.

- CD Speed 99 v0.80 results: (click here to see the CD Speed 99 graph)

Using CD Speed 0.80, we confirmed SCSI Mechanic results. The Lite-On drive got the second place with 31.33x, with a slight performance gap of 0.22x.

In the "Seek Times" test, CD Speed results were much different than what we have ever witnessed from a optical drive in past. CD Speed 99 gives around 30-40ms as the random access time, which as you understand is nearly impossible. We investigated this issue with other measuring software and the above results come from CD/DVD Benchmark (German only) software.

In our question towards CD Speed author why CD Speed results are so different than the others software, he replied that "...I think the other two programs are reading data from the disc. CD Speed only positions the pickup without reading data. In a future release I will give users the option to select between seek and access times as with the latest DVD Speed. Normally the seek times are only a few milliseconds lower than the access times but some manufacturers implement the seek command other than intended..."

Also keep in mind that the official specs talk about 120ms average access time, which seems true with our test results.

Overwhelming this little problem, let's see the test results. The Teac 16x is simply the king in the "Seek Time" test, since it has only 73ms random access time. The Lite-On drive follows with 92ms and the rest drives just trying to follow.

- CDR Media: (click here to see the CD Speed 99 graph)

The Lite-On managed to outperform the PleXWriter PX-W1610A with CDR media and gave back an superb performance of 31.97x. The Plextor drive follows with 31.56x and the Teac comes third with 31.19x.




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