But anyway... SMK files are in the compressed "Smacker" format, which is said to be used in over 2,000 games. The tools to both view and make Smacker files are free.
Go here: http://www.smacker.com/smkdown.htm
Get this:
The RAD Video Tools [1.2 MB]
Seems like a great utility for making self-presenting videos and slide shows, I found it fairly easy to use and the compression can be set to any level you desire. Feed it a LST file and it will compile it into an SMK movie, then make the SMK an EXE and it'll be self running.