I am currently creating Blu-ray disks using multiAVCHD, my issue is with transcoding the video. Most of the times my videos that are not Blu-ray standard which causes them to be re-encoded by multiAVCHD causing audio sync issues.
The videos are MPEG4 with AAC audio, I need to convert the audio to AC3 to abide by the Blu-ray standard, but it'a a slow process that might take a long time.
My issue was the audio going out of sync when using multiAVCHD.
While adding an MKV video with aac audio, I am getting a "stack line overflow" message or something of that sort. Then the program locks up and forces a shutdown. I hope that it's a "Bug" that will be fixed on your next release.
So my Best advice for multiAVCHD is to import videos which are Blu-Ray compliant:
"Video codecs: MPEG2 - MP@HL and MP@ML
AVC/H264 - MPEG-4 AVC: HP@4.1/4.0 and MP@4.1/4.0/3.2/3.1/3.0
VC-1 - AP@L3 and AP@L2"
"Audio codecs Dolby Digital up to 5.1 channels (Max 640 Kbit/s)
Dolby Digital Plus up to 7.1 channels (Max 4.736Mbit/s)
Dolby Lossless up to 9 channels (Max 18.64Mbit/s)
DTS up to 5.1 channels (Max 1.524Mbit/s)
DTS HD up to 9 channels (Max 24.5Mbit/s)
Linear PCM up to 9 channels (Max 27.648Mbit/s)"
H264 is listed under Video codes. "Dolby Digital" up to 5.1 channels (Max 640 Kbit/s) is AC3. MPEG2 Transportt Stream Videos with AC3 audio format is recommended.