Ricoh MP5125A Problems wont read discs!

Hello all,
I need mega help, I just bought a Ricoh MP5125A and updated the firmware to 1.72 straight away. Then I got a Bulkpaq 2.4x (Compatible with my DVD Writer) and tried to burn driv3r on xbox. It wrote the disc but my xbox wouldnt read it, so I tried burning a movie. Same again I burned it but it didnt read on my dvd player then I tried both of the discs on my computer to see if it could even read the cd and it couldnt. So please someone help me!!! Ill even give you webspace. :eek: