hiya, im after playing halo1 and 2 on my xbox 360, so i have updated my samsung ms28 to xtreme 5.2a which mentions adding something about playing xbox files from an iso, im a little confused so im wondering if you could help me...

i have my original xbox halo files the default.xbe and folders all ready but how do i get these on to a disc? ive tried nero and i get an error saying "this original xbox disc has encountered a problem" is there something i am doing wrong!? any help is greatly appreciated

Need to start with the original, no backup of backup discussion allowed here.
in short, we accept discussion on process that brings you from your original to that original and ONE backup (including the one on the Xbox 1 HDisk).

Xbox 1 style backup (patched xbe) will not work on your x360.
-if you have a X360 with samsung you can do SL or DL for XBOX 1 titles only (no x360 to SL yet). it is a bit more complex at this point than DL since there are no real integrated tools for that.
if you are interested you can look at this post on Single Layer with FW 5.2 , the release post of FW 5.2 and the release post of XBEFIX. And the link to XDVDMulleter is here.
There is also a tutorial in the Backup Faq - Everything* You Need To Know PLEASE READ BEFORE ASKING QUESTIONS!

rgds,soso