If you really want uncompressed AVI (and personally, I'd do everything in my power to avoid that, considering the 'master' is already MPEG-2 at 4:2:0), then you can also use a .d2v. Make one with DGIndex, write a line or two of AviSynth script, load that into VDub, and dump it out as if it were a monolithic .vob on your hard drive.