Well I'm using the Pioneer A03 and had no problems with anything i've burnt.
1) Forget CD-R they don't work. Just use CD-RW, DVD-R and DVD-RW and you won't go wrong
To burn EvoX using Nero:
1) goto File Burn Image
2) Select the EvoX ISO
3) Then Click The Foreign Image Tab. Although the Options Are Grayed they Should read:
Type Of Image: Data Mode 1
Block Size: 2048
Everything else should be unchecked and 0's
4) Now click the Burn Tab and check:
Write: Checked
Finalize CD: Checked
Write Mothod: Track at Once
5) Now click write and you have a sucessfull EvoX image
If this doesn't work then your Enigmah is not installed properley. I also have the Enigmah and had a simlar problem and when re-checked some of the solder points were a bit dodgy. Which version of the Enigmah are you using? as there are two different diagrams one for the Final and the other for Final PCB Fix which I'm using. Hope this helps you.