Libewf is a library for support of the Expert Witness Compression Format
 (EWF), it support both the SMART (EWF-S01) and EnCase (EWF-E01) format.
Libewf allows you to read and write EWF files. Recent versions also
support the LEV (EWF-L01) format.

WWW: http://sourceforge.net/projects/libewf/