Samsung TS-H552 DL Recorder - Page 2
Transfer Rate Reading Tests
In order to confirm the drive's specifications for CD reading we used one
CD pressed media, a copy on CD-R and HS-RW media. The results are
illustrated in the following graphs.
- CD Format
The drive confirmed fully, the manufacturer's specifications. Due to its
supported 48X reading speed, it was the fastest among the drives
with Pressed CD and CD-R media, but
proved slowest with RW media.
- DVD Format
We repeated the same tests with DVD media this time.
All drives reported almost the same speeds. The differences are
negligible.
The following DVD is a PTP DVD-ROM where the two layers of disc are read sequentially
with the drive starting reading from the inner part of the disc, which is the
beginning of each layer, progressing towards the outer range for each layer. Pioneer was the fastest due to its higher supported speed.
The graph shown below, indicates the reading performance of the TS-H552 with OTP dual layer media. The first layer of an OTP dual layer DVD-ROM is read exactly the same way as the first layer of the PTP disc we tested previously. The difference here is the reading strategy of the second layer of the disc. The beginning of the second layer is located in the outer part of the disc, so the drive starts reading from the outer tracks towards the inner part of the disc. The performance is similar with the PTP case.
The two following graphs include the reading performance with
recordable and rewritable media, where again the Pioneer drive is the fastest
due again to its higher supported speed.
We ripped the contents of a pressed Double Layer movie to the hard disk using
the Samsung drive. The results are summarized below:
The Samsung drive was the fastest with an average speed of 6.9X while
the maximum reading speed reached 8.5X.
-Appendix
Nero CD-DVD Speed Graphs
