DVD Won't Boot

[JCO]

Running Windows XP Pro with all patches and SP3.
My DVD-RW is Pioneer
Current DVD-RW Firmware: Pioneer DVR 107D 121F.

I have a DVD that is bootable. It works on other PC's but I have a computer
that it will not boot from. I get this message:
Can't boot from CD - Code: 5

I'm using a DVD+R that contains a bootable operating system. I even tried
using a rewritable DVD-RW, but it won't boot from that either. I'm positive
there is nothing wrong with the content on the DVD+R and in fact have tried
it on another PC. I've had no issues booting from a bootable CD but no luck
with any DVD's.

Also; it makes no difference what system I'm running because the content of
the DVD is an Operating system. So I should be able to boot from it with a
newly formatted harddrive.

I Goggled this and read some stuff but can't put my finger on the cause. My
best guess is that the DVD needs the firmware updated. I'm guessing that I
need to Flash the DVD-RW to a newer firmware but I can't find a newer
release than what I'm using.

Thanks in advance.

 

[JCO]

Yeah.... I already have one picked out. But things like this still bug me
and I still would like to find a fix (call it a learning experience).

 

[sgopus]

it's possible the CD reader has a faulty laser and is not reading the boot
sector properly, no real way to test the Cd drive, if the cd is truly
bootable, and you've shown that it is, then it should work in the cd drive.
by the error code, it is showing it's attempting to read the cd. so the bios
is set correctly.