Hi Taroth, thanks for your quick answer.
Would you say it is normal that the first color change appears after this 4-6mm ring? It appears a little bit early to me. There also is a second ring at about 50-55% of the recordable area.
Strange: I burned 4 discs with another recorder which do not show this 4-6mm ring. And 2 with the LG which do not show it, too. Maybe the recording was slowed down because of some speed issues of my PC? I have a Firefox running most time, which can be a real resource hugger at some times...
What about the strange high-pitched sound? Did you ever notive sth like that?
I dont think they are fake, a "bad" batch may be. The discs are read back with the LG with no problem at all, problems only occur in my laptops drive. Reading curve below, looks perfect to me...
Reorder#: 43475 (Made in India)
Serial#: ZC9742-DVR-I47A (I think here it is an "I" - maybe "India"?)
Every little bit helps, again, thank you.
Nero CD Speed Test results
Operating System Windows XP
Drive HL-DT-STDVDRAM GSA-4163B
Firmware Version A102
Serial Number **********
Capacity 4.30 GB
Random 91 ms
1/3 116 ms
Full 179 ms
1X 7 %
2X 14 %
4X 25 %
8X 46 %
Burst Rate 24795 KB/sec
Spin Up/Down Times
Spin Up Time 3.44 sec
Spin Down Time 1.97 sec
Load Time 1.12 sec
Eject Time 2.62 sec
Recognition Time 20.22 sec
The "Recognition Time" looks very long to me, though...
The graph is below, it is from a disc with this 4-6mm ring...