I have Leo4all v3 10.5.3 Leopard running fine, only problem is i cant burn CDs/DVDs.

I heard if AHCI mode enabled, SATA DVD-RW works. In about my Mac i am seeing its SATA only..No AHCI mode enabled.

Used nForce Test chipset drivers while installing.

My sys config is,

AMD Athlon FX60 2.6 GHz Dual Core
Asus A8N SLI Deluxe 1805 Bios (Has nForce 4 SLI chipset)
2 Gb Mushkin DDR500 @ 400 Mhz
Asus DRW-1814BLT SATA ---No AHCI mode
Seagate 250 GB SATA II

Any help..appreciated.