Yeah, it'll handle ARccOS. The only thing is you might not be able to open the output with DVDShrink, the "invalid data" error. Supposedly that problem was fixed, but there are reports that with some ARccOS protected discs, the problem persists. Your best bet (if Shrink won't open the files) is to open the output from DVDFabDecrypter in VobBlanker, set output folder, and hit "process". Nothing else. Then open the output from VobBlanker in DVDShrink. Or alternatively run the Fab output through DVDRebuilder at no compression to "wash" it. Then use Shrink.