Okay, here is a large OMF that does make REAPER eventually crash after a few minutes. It is over 700MB, so I had to archive it into 2 separate files. Once you download them they will unarchive back to one OMF file.
http://rapidshare.com/files/20976932...tal_G_3.7z.001
http://rapidshare.com/files/20975473...tal_G_3.7z.002
Cheers,
Billy Buck