Blu-ray image build fails with LPCM error

Question

hello,
Using CS6 Encore
I have created H.264 files (.264, .264.Stereo1) for a 1:04hr sequence using Matrox
- 1920x1080p 23.98fps
- both 27.0 and 30.0 target data rate, Constant Bit Rate CABAC, H.264 level of 4.1
and when I try to build a Bluray image using them, the build fails with the message:
Error: "invalid format", Code: "14", Note: "Bits per Sample of LPCM is illegal. 32"
I first got this error using target data rate of 30 (default) - then I dropped it to 27.0 and still got the error.
I then tested with a 1min H.264 file created using the same above settings and the image was successfully created.
In CS5.5, when I had similar errors, I dropped the target data rate to 27.0/27.1 and the build would complete without errors.
I can't find any discussion of the above error on the web or on these forums - perhaps my search terms were not good.
Any help would be greatly appreciated.
I was able to successfully build another 1hr blu-ray image with default settings (target data rate 30) a few days back.
In both successful and unsuccessful cases,the source sequence is a 1920x1080i 29.97fps Matrox AVI file, which I convert to 1920x1080p 23.98 fps in AME using Matrox to create the .264/.264.Stereo1 files, which I then import into CS6 Encore and create the image.
Encore CS5.5 was a pain in that it would hang on source files larger than 2GB - I came across a Adobe forum/support thread suggesting using the workaround of importing to the Encore timeline files <= 2GB in size.
-Nanda
-Nanda

Answer 1

Thanks Ramesh.
Both the 1min and the 1hr .Stereo1 WAV files show the same 32-bit bit depth as per MediaInfo.
General
Complete name                            : R:\Plano_Jul20_2012_264.stereo1.wav
Format                                   : Wave
File size                                : 1.30 GiB
Duration                                 : 1h 0mn
Overall bit rate mode                    : Constant
Overall bit rate                         : 3 072 Kbps
Audio
ID                                       : 0
Format                                   : PCM
Format settings, Endianness              : Little
Codec ID                                 : 1
Duration                                 : 1h 0mn
Bit rate mode                            : Constant
Bit rate                                 : 3 072 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 KHz
Bit depth                                : 32 bits
Stream size                              : 1.30 GiB (100%)
General
Complete name                            : R:\Plano_Jul20_2012_1min_264.stereo1.wav
Format                                   : Wave
File size                                : 22.0 MiB
Duration                                 : 1mn 0s
Overall bit rate mode                    : Constant
Overall bit rate                         : 3 073 Kbps
Audio
ID                                       : 0
Format                                   : PCM
Format settings, Endianness              : Little
Codec ID                                 : 1
Duration                                 : 1mn 0s
Bit rate mode                            : Constant
Bit rate                                 : 3 072 Kbps
Channel(s)                               : 2 channels
Sampling rate                            : 48.0 KHz
Bit depth                                : 32 bits
Stream size                              : 22.0 MiB (100%)