To the laser software people:
I realize that it takes a lot of work to create software to produce laser shows. But, software that plays back laser shows is quite simple. So, I understand why it costs a lot of money to buy the various show creation software.
But what about people who don't want to create shows? What about people who just want to watch them? Why not create some cheap software that does nothing but plays back shows.
Also, why not create an industry standard show format? Although the ILDA format is not intended for that, it is pretty close to being what is needed. Why not enhance or base something on it with music time cues and frames? And, if you are worried about people stealing the shows then just add an encryption layer to the show file.