I use Vista32 home basic.
The point is that if i try to load Transformers and PwerDVD audio is set to SPDIF, the program chrash.
Using the new reclock I set PDVD audio to "6 speakers", anche reclock for resample the PCM back to AC3. This is a little strange, but it works.
If you know how to let PDVD work directly in SPDIF with Transofrmers, you are welcome!