Use another burning-application.
I suggest you to use IMG-Burn, with the AWS-Speed-Setting.
Btw.: You don't need to patch your ISOs with ESR, if you have a chip installed... Have you ever tried a non-patched ISO?
What kind of DVDs are you using?
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