Try 8xCertified Verbatim, if you can get it.
I tested a few "Slim"-Laptop-DVD-Burners, but it's been a while so I couldn't give you a better statement on this model.
Try to get Verbatim 8xCertified-Media, if you can get it, to test if the media-quality is good.
Try to burn it with 8x (the Cert-Speed).
Else try FujiFilm 1-8x with 4xSpeed (you can test 8x, if you wish).
...or FujiFilm 1-16x with 8x.
Try to test the C1&C2-error-Rate with "Nero CD/DVD-Speed".
Hope it helps,...
Edit: Well,... You get it working. So you can try, what I've posted, but you mustn't...
PS2 V7/DMS3 V2 (FW:2.4b7); Seagate Baracuda 200GB
PS2 V7/CC1.0 (FW:34 hacked v2 BM:2.1.6); Maxtor DiamondMAX9 PLUS 160GB
PS2 SCPH-30004R; NoMod+NoLaser
3xSony MC 8MB
MAX/Datel 16MB with Boot-CD
Custom FMCB 1.8b+ Beta-Build, my AIO 0.5, Sony&xRhino-Linux