"An error occured while extracting the system image! Please check the install CD, or try selecting 'Safe Mode' when installation CD begins booting. The system will now reboot!"
I am experiencing the same EXACT issue, on an EPoX EP9nda3+ Ultra.
I have tried almost everything you have tried, except I cannot figure out a way of burning with Nero slower than 8X. (There is no slower option available when I insert the media)
I have tried both TDK and Maxell media, (6 coasters and counting) at 8x, and 16x.
I have also tried disc-at-once, track-at-once, I have tried verifying data, and finalizing the disc.
I have burned dozens and dozens of OS's from ISO's over the years, and this is the first issue I have had like this!!
I am quite disappointed because I really wanted to give PCBSD a try. It looks like I am out of options.