DVDFab Copy no sound

Hi. I am trying to copy a home-recorded Blu-Ray (from the TV) to my hard disk to play on a different device. I can select the m2ts file on the Blu-Ray in DVDFab, and when I preview the file, it plays correctly with sound and video. However, when I run DVDFab to copy the file, it produces an m2ts file containing only the video - no sound. I cannot find a way to copy with the sound. I think that there is a copy-once protection on the Blu_Ray file (set by by Panasonic recorder). MediaInfo gives the following report on the copied file:

General
ID : 0 (0x0)
Complete name : C:\Users\Duncan\Documents\DVDFab9\MainMovie\DVD_VI DEO_RECORDER\BDMV\STREAM\00001.m2ts
Format : BDAV
Format/Info : Blu-ray Video
File size : 2.61 GiB
Duration : 1h 11mn
Overall bit rate mode : Variable
Overall bit rate : 5 186 Kbps
Maximum Overall bit rate : 48.0 Mbps


Video
ID : 4113 (0x1011)
Menu ID : 1 (0x1)
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.0
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : 27
Duration : 1h 11mn
Bit rate : 4 973 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.096
Stream size : 2.50 GiB (96%)
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709





Any help much appreciated.