The KiSS team has just released a 4-language DVDRip version (English/Cantonese/Taiwan/China release), 3CD, you can search for it. The name is:

01.14.08.Ratatouille.2007.SPECiAL.COLLECTORS.EDiTiON.iNTERNAL.DVDRiP.X264-KiSS

The domestic genuine DVD will be available on Joyo on January 25th It can only be shipped, and it is not yet certain whether the configuration includes dubbing for public release.