a quote again from netkas blog, im using Enhanced SATA in my Bios and On chip PCI IDE is disabled

" PC EFI is a bootloader based on chameleon2 source code, v 10.3 brings one new feature, a cd/dvd-rom reading driver for ide mode(compatibe/legacy and enchanced/native).
The driver based on mindrvr from ata-atapi.com.
it doesn’t work with ahci(it will not detect dvd drives in ahci mode, hard drives still work fine).
it’s beta, so its only for testing, driver may not work for you.
known issues: sata ports 5-6 doesnt work, so I disabled scanning of those. "