Can't figure out an easy way to store structure data (strongholds etc). Guess I have to do it the hard way =(
Well, he's trying to make structures save to files instead of being free floating dependent on game version. (Currently, while the game generates structures, any specifics to their location such as spawn areas is determined solely by the game. This means if structure generation changes, the structure itself will still be there, but any game-controlled variable will shift or disappear depending on the new generation.)
Edit: I just realized what
might be the problem: He is probably trying to find a way to save structure data in the current save format, so worlds will still be backwards compatible, but he can't figure out simple way to do it. He might have to make a new version of the world format to support it. Again, my assumption, and I could be completely wrong.
The command for that was: /give Dinnerbone record_11 1 0 {display:{Name:"Sound of Awesome",Lore:["Totally."]}} - nothing too special :)