I've written up a quick-and-dirty (well, except for the 'quick' part)
ruby-marc reader class to read AlephSequential  files as output from the Ex
Libris Aleph system. If you don't know what that is, or why you would want
it, thank your god and move on.

Initial code is at https://github.com/billdueber/marc_alephsequential

If there's any interest, I'll gemify it and/or start a discussion about
whether or not to fold this into ruby-marc proper.

Speed isn't too awful -- about 150% the speed of reading a marc-binary file
with ruby-marc on my machine.

Pull requests are *always *in fashion ("...at the Copa...")

-- 
Bill Dueber
Library Systems Programmer
University of Michigan Library