OK, Saturday I have time to investigate further and am now pretty sure there is something wrong with either the BIOS firmware or the three included recovery CDs.
Now have two powered hubs and two external DVDs (could get to the warehouse and Microsoft store is reasonably close as long as go before noon - one of the tings about Orlando this time of year). Also has 32 and 64 bit Microsoft 8 Pro disks.
Have enabled F12 and disabled "Secure Boot" in the firmware. There are two settings for erase secure boot and restore but they have no selections, are simply mentioned.
All combinations with the DVDs and hubs have the same result: With the real Microsoft disks, the CD appears as a boot selection. With any of the three "Recovery" CD/DVDs it is ignored.
This makes me think there is something basically wrong with the recovery CDs Since all appear to read properly after Windows boots and when I created an ISO, the Microsoft recovery tool reported "is not a valid ISO file". I contacted the ISO software people and they said they could see nothing wrong with the file it had generated properly.
So one or the other, the firmware needs another update (I have the 13 December) or the supplied CD/DVDs are faulty.
Has anyone been able to boot from any of the three CD/DVDs particularly the "one of one" ?