Well... it might not actually be the size of those files that is at the heart of the
problem, after all.
Calibre can turn the ereader2html output into a pdb file that it (calibre) can then
convert to an ePub file that the JetBook Lite can read without throwing a "File Too
Large" error. Any idea why it can't do it within one conversion?
I haven't tried Sigil yet, maybe it can turn the ereader2html output into a pdb file
that JBL can read without throwing the "File Too Large" error. If not, I can always
do it in Calibre with two conversions.