The renderman user "jfong" wrote a little tool to convert the mona data.
additional info [quote=jfong]
1. You'll need around 20 GB of additional disk space on top of the Moana Island base package data for the RIB files.
2. The conversion process takes around 30 minutes. (It's a C++ program, so it's a lot faster than the python script for converting to PBRT. But it's still get a cup of coffee time.)
3. Depending on the frame resolution, you'll need at least 50 GB of RAM to render this in R22; that number is significantly higher in R21. (Keep in mind if doing a memory comparison to PBRT: the latter doesn't have subdivision surfaces.)
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