So, what have we got? The drives both reached a speed of 6x on recordable media, but produced quite different results with the DVD-ROM. The Samsung TS-H352 almost hit its declared max speed of 16x, but had some problems reading the last stretch of the disc (you can see a slump in the data-transfer graph). The LG GDR-8163B could only accelerate to 8x on the DVD-ROM. Of course, it is possible that some problems with the particular DVD-ROM disc led to such discouraging results. The access time of the Samsung TS-H352 is smaller with DVD media compared to the LG GDR-8163B. Here, however, the DVD access time parameters of the two devices are better than their own specifications imply, especially the access time of the LG drive.

And once again we see that an optical drive supports a format which is not listed in its specs. I mean the Samsung TS-H352 which works normally with DVD+R/RW discs.