Unity reads text files that you choose and puts them all into one
file, also of your choosing. It puts writes them in the same order
that you choose them. Unity allocates itself a chunk of your memory
for a buffer. Under Multifinder, this chunk is 30K. If you aren't
under Multifinder, the program allocates the largest possible chunk of
your free memory that it can get its hands on. To do this under
Multifinder requires some special programming, so i haven't gotten
around to it (see Future changes).
