I wish it worked on the Ectaco Jetbook (even though the lookup function would not work, thanx to Ectaco's firmware). I put it on my Jetbook 2G SD card and I get "file too big to open". It looks like this reader needs the dictionary broken down into segments like the previous attempt, only with normal compression. Could you recompile the older version with normal compression? Jetbook users have no dictionary at all.
I might try breaking the txt file into 500 page individual files.