It's Final Cut Pro, but not as we know it.
Wow, they're noisy. They're also light leaks, surely, not film burns or lens flares.Pretty, though. There are lots of these packages around, but they can be expensive, or crap, and it's hard to use the same effect more than once or twice in a film - so having a wide range up your sleeve is good.
Thanks!And here is another pack of free film burns (or light leaks)