DVD-RAM writing performance:

The Samsung SE-T084L is a so-called Multi drive, meaning it also supports the DVD-RAM format.

This drive is one of few drives that also supports the DVD-RAM format, lets us look at the recording side of the disc, and as you can see it has differences from the other DVD+R/W/R9 DL and DVD-R/W discs.

We can see a very fascinating pattern of darker spots. These tick marks are "address information" ("Pre-mastered Pit Header Field") which are embedded onto the disc. This is header information in front of data sector area, and is the same format as HDD and MO.

A DVD-RAM’s disc can be formatted in the following formats:

• FAT32
• UDF 1.02
• UDF 1.50
• UDF 2.00
• UDF 2.01
• UDF 2.50

By formatting a DVD-RAM disc with FAT32 it will act like a removable hard drive and all writing will be done as “background processes”. Meaning you do not have to wait for it to finish, you can start or work with other applications while the DVD-RAM is working without noticing any “hangs” or CPU slowdowns.

DVD-RAM has error correction, but also has error replacement to spare sectors as a "defect management" function. This gives higher reliability than other DVD format.

Another advantage with DVD-RAM is that the discs can be formatted/erased/written at over 100.000 times before it will/can cause/report any errors. Let’s try to read back the 2 discs that we wrote:

Lets us take a look at the media we are going to use in these tests.

5x DVD-RAM writing performance:

The Samsung SE-T084L wrote the disc in 12 minutes and 08 seconds using a P-CAV (Partial Constant Angular Velocity) writing method.

Now let’s try reading the disc back in the drive.

The Samsung SE-T084L had no problems reading our created disc.

Now let’s try and read the disc back in our Optiarc read-back testing drive.

The Optiarc drive had no problems in reading back our test disc.

Summary:

The Samsung SE-T084L wrote and was able to read back our tested media without any problems.

Now let’s check out the Samsung SE-T084L LightScribe feature on the next page...

DVD+R DL/-R DL Writing performance

LightScribe