Compressor Failed

Hi, I've recently tried to compressor projects to fit onto DvDs, my first was a 3 min video that toke around an hour to compressor, once it was all done instead of getting what I'm used to seeing (Successful) I notice the compression said "Failed" I didn't understand why but I let it go and burned the video straight from FCPX to a DvD. A couple days after I had a hour long video that I needed to compress to also fit on a DvD, by using DVDSP and creating and menu for the DvD then burning it from there but again I came across the same problem, my compression said that it Failed. I don't know why so any help would be great. My footage is HD 1080i 29.97i 1440x1080. I am sending the project straight from FCPX to compressor to compress.

Can you give us a screen shot of the "failed" message?