Apple Compressor 4 Blu Ray disc-image problem – can anyone here help?

[Steve]

Hello,

I need to create a Blu Ray image of a show I edited in FCPX using
Compressor 4. The length of the video is 2 hours and 45 minutes. I
want to be able to make multiple copies on Dual Layer BD-Rs. I
exported it from FCPX as a master file and imported this into
Compressor. Every time I submit the job it renders (27 hours!)
Compressor outputs the H.264 and ac3 video/audio files OK, but when the
Create Disc app opens to make the image it tells me there was an error
creating my disc image and that “there is not enough space on your disc
to complete the operation”. There is a button to “try again” but when I
click this I get another error “DSP Publishing error 1024”. I have
844GB free on my computer’s drive and the external drive I am using as
my destination has 3.38TB free space available. I am able to create
disc images of smaller files without any problem. I can only assume
that the “free space” is referring to some kind of cache memory
allocation which is not big enough to process this large file? If so,
where is it and how can I increase its size? I have tried burning
direct to disc (disc’s system files got corrupted) saving an image to
different locations (same results as described above). I am about to
attempt another “submit” for the 5th time having changed the settings
in Compressor to “never copy source files to cluster” and changing
Qmaster’s storage folder to an external drive. Should this do the trick
or is there something else I am missing here? The 27 hour processing
each time is driving me insane. So far I have managed to keep the
client happy but I really need a solution to this problem. Can anyone
PLEASE help?
Thanks.