Pioneer BDR-202 detail information

An Introduction to Blu-Ray

Until recently, optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM relied on a red laser to read and write data, the Blu-Ray format uses a blue-violet laser, which explains the name Blu-ray.

A blue-violet laser (405nm) has a shorter wavelength than a red laser (650nm); this makes it possible to focus the laser with even greater accuracy. This will allow data to be packed more tightly, so it's possible to squeeze more data on the disc even though it's the same size as a CD/DVD. This together with the change of numerical aperture to 0.85 enables Blu-ray discs to hold 25GB/50GB.

Blu-ray drives can also be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit.

Now let’s take a look at the track pitch and compare them with that of DVD

As we can see in the above screenshots, the storage density of Blu-Ray is much higher than DVD. The Blu-Ray laser beam spot is also much narrower than that of DVD.

Blu-Ray Error specification:

In the above table we present some of the specifications for reported errors on Blu-Ray media. At present we have no equipment or software available for measuring these errors.

BD-R:

The specifications of the Pioneer BDR-202 state that the drive is able to write BD-R at 4x. Let us find out how the drive really performs.

For these tests we used Nero CD-Speed to create our test discs. In each case, we burned a full disc at the drives maximum rated speed.

BD-R CD-Speed created data discs:

The Pioneer BDR-202 burned our test BD-R media from TDK in 23 minutes and 8 seconds.

Now let’s see if the Pioneer BDR-202 can read back our test disc.

The Pioneer BDR-202 had no problems in reading back our test disc. Now let’s try a Nero CD-Speed scandisc test.

As we can see, there are no errors on our test disc.

The Pioneer BDR-202 burned our test BD-R media from Verbatim in 23 minutes and 8 seconds.

Now let’s see if the Pioneer BDR-202 can read back our test disc.

The Pioneer BDR-202 had no problems in reading back our test disc. Now let’s try a Nero CD-Speed scandisc test.

As we can see, there are no errors on our test disc.

BD-RE:

The specifications of the Pioneer BDR-202 state that the drive is able to write BD-RE discs at 2x. Let us find out how the drive really performs.

BD-RE CD-Speed created data discs:

The Pioneer BDR-202 burned our test BD-RE media from TDK in 46 minutes and 45 seconds.

Now let’s see if the Pioneer BDR-202 can read back our test disc.

The Pioneer BDR-202 had no problems in reading back our test disc. Now let’s try a Nero CD-Speed scandisc test.

As we can see, there are no errors on our test disc.

The Pioneer BDR-202 burned our test BD-RE media from Verbatim in 45 minutes and 35 seconds.

Now let’s see if the Pioneer BDR-202 can read back our test disc.

The Pioneer BDR-202 had no problems in reading back our test disc. Now let’s try a Nero CD-Speed scandisc test.

As we can see, there are no errors on our test disc.

Summary:

The Pioneer BDR-202 burned all our test Blu-ray recordable test discs at the fastest speed currently possible, BD-R 4x and BD-RE 2x and done so without any problems. The Pioneer BDR-202 also had no problems in reading back our test discs.

This concludes our Pioneer BDR-202 review. To read the conclusion, click on the link below.

DVD-RAM Writing performance

Conclusion