7.2 disc1 & bootonly cds not recognized as bootable

[Fbsd1]

Running 7.1 and trying to do clean install of 7.2. Downloaded both disc1 
and bootonly iso files because the 7.2 release announcement says this.

Note: late in the testing cycle it was discovered some machines do not 
recognize

the i386 disc1 as bootable (they just fall through to booting off the 
next boot device).

All affected machines did see the other discs as bootable. If you have a 
machine

with that problem booting off either bootonly or livefs and then 
swapping in disc1

once sysinstall starts should work.

In my case I have the described booting problem with both disc1 and the 
bootonly disk.

Disc1 and bootonly cd are bootable on different computer so know they 
are good.

Dead in the water, Help