detail information

The NEC ND-2500A supports writing Ultra-Speed CD-RW discs at 16x speed. It supports writing DVD+RW and DVD-RW discs at 4x. 4X DVD-RW media is still not for sale so we were unable to do any 4x DVD-RW tests since we did not have any 4x DVD-RW media. It do only support 16x CD-RW and thus lags behind many of its competitors.

Re-Writing data:

For this test we set up a new compilation containing 650Mb of data in Nero Burning ROM. We used the DAO (Disc At Once) writing method. In the screenshot below you can see that the burn process completed successfully.

The NEC ND-2500A used 5 minutes and 33 seconds for writing the disc at 16X, let us compare this to some other writers; The Lite-On LTC-48161H using CAV(Constant Angular Velocity) writing tech used 4 minutes and 56 seconds to write the disc, the Lite-On LDW-411S which uses P-CAV(Partial Constant Angular Velocity) writing strategy used 3 minutes and 43 seconds to write the disc. This makes it the slowest drive of all these drives.

And here is the writing time for writing 4.4Gb of data to a 2X Verbatim DVD-RW disc:

The drive used 28 minutes and 31 seconds to write the disc at 2X. Compared to the Memorex Dual-X (used 28 minutes and 51 seconds to write the disc) and the Lite-On LDW-411S (used 29 minutes and 22 seconds to write the disc) it is able to beat them both, this is probably since the actual write speed of the NEC ND-2500A is closer to 2.1x.

And finally here is the writing time for writing 4.4Gb of data to a Ricoh 4X DVD+RW disc:

The NEC ND-2500A used 13 minutes and 52 seconds to write the disc, as a comparison the Aopen DRW-4410 used 14 minutes and 57 seconds and the Lite-On LDW-411S used 14 minutes and 19 seconds. Again the NEC ND-2500A came out as the fastest drive, again probably due to higher write speed as the actual write speed is 4.14x.

CD-RW Packet writing:

Now it's time to take a look at the packet writing performance of the NEC ND-2500A. We used Sonic DLA 4.5 to write 401 MB (421 003 264 bytes) data to the disc.

We have had a hard time finding a packet writing program that would work as expected, right now Sonic DLA have proven to be the best although it's not perfect either as it may conflict with Nero and InCD. It will not even install unless you uninstall Nero and InCD. For a reason or another the drive gave back a worse result than expected, it should have been closer to 15-16x average speed.

DVD-RW/DVD+RW packet writing tests:

We used Sonic DLA 4.5 to format and write 2Gb (2 217 820 160 bytes) data to the disc.

There is really no difference in DVD Packet writing performance and all drives performed very well.

Before we round off this review, let us run the drive through some advanced tests at next page…