Can anyone give me a clue as to how to convert a raw 10 byte
double to an 8 byte (or 16 byte) eye-triple-e format.  I am in the
process of converting an old Mac program which saved out doubles to files
in a 10 byte format as raw characters (yeah, I know, but I didn't write
it originally).  What I need to do is read in the 10 bytes and then somehow
shove 'em into an 8 byte double so I can modify the program for a power PC.
Are the two formats compatible (i.e. can I just chop off two bytes)?

Thanks in advance,
 --William Gibson