hey donald, thanks for the heads up!
my only gripe about dgdecnv are that: 1) it ties me to an nvidia architecture (which i actually have, in the form of a lenovo b560 laptop with an nvidia 310m -- AFAIK that's good enough to support these CUDA operations, right?), and 2) since it costs money, if somehow i still can't make the system work, it's just dollars down the drain.
however, if you are positive it should work in win7 64bit on the abovementioned laptop, i may chime in.
and how is the workflow? i open the .TS files just like the .VOBs in DMPEGDec, save an avisynth script from that, then start up YAMB, open the script and start working from that? (in case i skip the mp3->aac conversion... does the mp4 encapsulation format support mp3 streams as well?)