The first Arccos title I ran across (Little Black Book maybe? anyway, one of the Jan 2005 US releases) wouldn't play in PowerDVD (or any other PC DVD player I tried - WinDVD, Mediamatics, etc.). DVD Decrypter would rip it in IFO mode but failed at a bad sector in file mode. A couple days later, a new version of DVD Decrypter was release that dealt with Arccos.