Alrighty then.
The riddle: I am a builder, yet I'm unlike you. I am... Beaver
I think if I add more clues i would be simple... A, B and R were found out by LioNeeZ.
Hinode gave the correct answer.
Could you please re-upload;
[050922][月面基地前] 月面基地前プレミアムBOX Vol.1 ロケットの夏編 [+コンプリートサウンドトラックス] ?
The main-disc link is alive. I need only "Complete Soundtracks".
Sorry, but RG doesn't work for me.