The format is fine, probably. (Pasting always has a null couple of bytes but that's no big deal.) I feel I haven't tested it all that thoroughly but I haven't heard any bug reports. I just think it's really inefficient to record yourself doing a dozen false starts before you figure out exactly what you want to do or whatever, and it would be much better if Reworder just looked at the level and figured out on its own what it needs to remember. Packing it into the .j2l would be nice, but those files are specifically intended for cases when you are saving in JCS, so the data wouldn't last a second.