Bd Rebuilder problem

I have downloaded all the programs called for in the intro. When I try to rip a movie I get the following:

[18:39:38] BD Rebuilder v0.31.04 (beta)
- Source: ING_BASTERDS
- Input BD size: 44.51 GB
- Approximate total content: [04:12:07.370]
- Target BD size: 7.72 GB
- Windows Version: 6.0 [6001]
- Audio Settings: AC3=1 DTS=1 HD=1 Kbs=640
[18:39:39] PHASE ONE, Encoding
- [18:39:39] Extracting A/V streams [VID_00151]


- Error in attempt to extract audio/subs.
-
[18:39:39] - Failed to retrieve audio, aborted

Any help. Please!! Happened 3x's