The DVD
Matrix by Rossi Fernandes and Aliasgar
Pardawala
Test Bench
The system, which we used for running the tests, was an AMD Athlon
650 with 256 MB of SDRAM, a TNT2 3D card with 16 MB of VRAM and
8.4 GB Seagate IDE drive. The operating system was Windows 98SE
loaded in an optimised state with no startup programs at 1024x768
resolution and 16-bit colours. An Adaptec SCSI card was installed
for the DVD drives with a SCSI interface.
Test Parameters
Apart from sheer performance in a series of tests, we also checked
the drives for other features and accessories. The presence of manuals,
installation CDs, other bundled software, etc, were aspects that
were noticed.
Performance Tests
The tests, which were performed to retrieve the best performing
DVD drives, were as follows:
Ziff Davis CD Winbench 99 :
ZD CD Winbench 99 was one of the most prominent tests we ran on
the DVD drives. It checks for average access speed and data transfer
speeds and other minute features such as CPU Utilisation and also
creates graphs for these tests. This was the main test and was accorded
25 per cent of the total weightage among all the tests.
SiSoft Sandra 2000 :
SiSoft Sandra 2000 is similar to ZD CD Winbench 99, and tested the
various parts of the drive. SiSoft gave a complete detailed report
on aspects such as data speeds and access times. It also gave the
DVD read speed and the CD read speeds. The SiSoft Sandra 2000 test
had a weightage similar to CD Winbench, and out of the 25 per cent
weightage, sequential read, random read and access time were given
7 per cent weightage, while the SiSoft Index had a weightage of
4 per cent.
Audio Catalyst DAE Test :
The Digital Audio Extraction test was run using a software called
Audiocatalyst. Using a common audio CD, three tracks were encoded
from the CD to a Wav file. The time taken by the drive to encode
each of the tracks was then noted, and this gave us the DAE performance
of the drives. This test was given 10 per cent weightage.
CD Error Test : For the
CD Error Test, we made some scratches on a CD so that the DVD drive
detected the CD as having errors. Then, we tested the error correction
ability of the drives. The time taken for the error correction test
and the number of errors found on the CD were noted down and compared
with the performance of the other drives. The weightage allotted
for the time taken to perform the test was 4 per cent and for the
errors found was 6 per cent.
Time for copying a single 100 MB file
: To check the data transfer speeds of the files,
we copied a common 100 MB file from a CD to the hard disk and noted
the time taken. Data transfer speeds are often one of the main concerns
while buying DVD drives. This test had a 7 per cent weightage.
Time for copying several 10 MB files
: This test was similar to the previous test, and
the only difference was that instead of copying one file, here 10
files of 10 MB size each were copied from a CD to the hard disk.
This was done to check the access time and the time taken to move
to the next file. This test had a weightage of 8 per cent.
Opening high-resolution images in Adobe
Photoshop : The last test we conducted on the drives
was the opening of 10 Tiff images of around 10 MB each from the
CD in Adobe Photoshop. This test really tested the drive to its
maximum. The time taken to display the images in Photoshop was noted
and compared with the other drives. This test had a weightage of
15 per cent.
Overall Rating After these tests and procedures were completed,
we made a sum of their scores to find out the overall score for
each of the drives. The one with the best overall score was obviously
the best performing DVD Drive.
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