"So... right. The PSN is not a UMD killer. So they say. But that's not stopping Sony Japan from re-releasing their PSP
Best Hits lineup in the PlayStation Store. Announced via the official PlayStation Japan website, the following Greatest Hits titles will be available on PSN Japan come December 11:
* Ape Escape: Saru Saru Daisakusen
Both games will be available for JP¥ 2,200 (a little over US$ 20). This actually comes in cheaper because the UMD versions of both games are being sold for JP¥ 2,800 a pop (about US$ 30)."