CD iso live cd burn, hangs up right when finishing.

[Jake5]

I am trying to burn an ISO of a few different variants of ubuntu.
I am pretty sure I know the proper way to write the disk as I have done it several times with successful results.
As of recently when I try to burn xubuntu and lubuntu, on seperate disks of course,
the burner starts doing its thing and after it says its 100% complete,
it says its

writing check-sum

or something really close.
It hangs up on this screen with the loading bar jumping back and fourth,
it will stay there forever if I let it,
however if I manually eject the disk it says its complete and makes a "ding" sound.
That would be fine if that were the problem,
when I try to boot from the disks, they crash every time.
Maybe I got a bad batch of disks, but I would love some advice if anyone can help with some cli commands.
I have searched this site and Google for related issues and came up empty handed thus far.

[chipbuster]

which program are you using? Xfburn and Brasero both act strangely on my computer, I have to use K3B even when I'm on a gtk-based desktop (which sucks)

[pootan]

K3b is the best burning software I have used on any OS.