One user has compiled the P64 program on a P.C. using gcc with the fread/fwrite command modified to "rb" "wb" for the binary files. The same modification should probably work for the MPEG program. For modification of the htable.lex and lexer.l file: Lex does not accept comments in the heading, unfortunately, the automatic header program puts that at the top. Put the first comment (pvrg disclaimer, etc.) into the %{ %} body and all should be fine.