I have created some sparks by following this video tutorial.
However, I would now like to create a smooth looping animation.
I have already altered the start frame for the particle emitter to a decent sized -ve (approx. 80 from memory) so that I'm not starting on frame 1 with zero/minimal particles.
I suspect that some way of seeding the random number will be involved, but I am at a loss how to do that and whatever else would be needed.