Haven't blogged in awhile, so here’s a quickie. Last week, Hilltop released an English patch for Boku no Natsuyasumi 2, which finally makes the Japan exclusive PS2 game accessible to us English speaking folks. The README explains how to apply the patch on Windows or via a web utility. Having never patched an ISO before, I wondered how it could be done using a native Linux utility instead. Turns out it's easy to do via the xdelta tool.