I CANNOT burn any image files for an unknown reason. This is NOT a stupid question. Please help!

OK. I have read a lot of posts in this forum so before I go on I would like to point out that I have read and Re-read ALL of Papas newbie help posts, plus a whole bunch of other instructions/tutorials and posts. I have upgraded the firmware on my burner to the latest version. I have upgraded my ASPI drivers to the latest version. I checked and my burner does support multi-session. I am using the Mitsumi CR-4801TE burner, and various CD-R media (650 and 700), TDK, Kodak, Maxell, BASF, Sony, Memorex, I tried them all. All I wanted to do is burn the simple Utopia Boot CD. I downloaded the appropriate image files for both Nero and DiscJuggler. I got Nero 5.xx and DiscJuggler 2.xx. I checked the image files, they both show two sessions. Finally, here is my problem, when I burn in Nero, everything goes OK and it says burn complete, but when I check the CD, it is only ONE session, and it DOES NOT WORK (( (shows as music CD in DC). When I burn in DJ2, it burns the first session, then as soon as second session starts, I get the following error:
17812 (CDB: 2ae000002d000001000, Status: 040002, Sense: 052400) Illegal field in command descriptor block
As I said, I tried absolutely everything, I now have about 40 coasters (I know this wrong, but I was ADDICTED). As far as I know, all of my hardware and software should be able to burn this boot CD. I do not understand why it's not working. Someone plz help!! e-mail me at [email protected] if you can. Thanks. (I tried to burn games too, not just the boot CD, and same problems, & sorry for the length of this post )