Trying to install and seems like booting starting ok, however I'm getting several lines with "AppleNForceATA: phy connection failed" and suddenly my HDD (SATA2) stops working. Seems like it is trying to boot from DVD anyway and I get "SAM Multimedia: READ or WRITE failed'" and PC just freezes after some more lines.

I've burned ISO at double speed.

What could be the problem?

My Specs:
MoBo: MSI K8N Neo4-FI/Platinum (MS-7125)
Chipset: nForce4-Ultra
CPU: AMD Athlon 64, 2000 MHz (10 x 200) 3200+, Venice S939
Graphic card: nVIDIA GeForce 6600 PCI-E (Asus EN6600)
HDD: Western Digital RE WD2500YS HDD 250GB, SATA II, 16MB
DVD: HL-DT-ST DVDRAM GSA-4167B

Thanks!