I have bad news for people using TSSTcorp and trying to writs dvds for PS2. I have a hp notebook too and try to write some iso of ps2, only a few pal and ntsc patched isos work... I think the problem was the DVD.. or my PS2... but i try with another TSSTcorp device and found the same problem and found on internet other people with the same problem with "samsungs" devices who is almost the same(TSST = toshiba samsung storage tecnologhy). I think there is a problem with our TSSTcorp devices.
If some1 know about a solution i'll happy to read it