Big Blue Reader 64 v2.0 by Mike Miller of s.og.w.a.p. is set of unique and powerful disk utilities for the Commodore 1571 and 1581 Disk Drive(s). These programs are designed to transfer word processing, text, ASCII, and binary files between standard Commodore 64 and IBM PC compatible disks.

Here is a link to the manual for v2.0, but it's  not a very good scan.  It's legible if you zoom in ;)