This is a bit random but I never said this blog was exclusively made for BD rips. Don’t worry, I haven’t forgotten about Hayate and Kotoura.
Here’s the complete DLC set of THE iDOLM@STER 2 for PS3 which contains Catalogs 1-18. The method used to unlock them is a rather ugly one so report if you encounter any issues.
UPDATE: Yes, you need to decline all 30(?) money packs at each start if you don’t want them. I may “fix” this sometime later.
Thanks to 层层尘, 萬古長恨, Kenshindono and an /a/non.