@insaneoctane;
I had no problem backing up the HP 1-6 Blu-ray discs, but I did full movie backups with BD-RB, and they all turned out excellent.
You may not have ffdshow set up correctly for VC-1 files.
You could try, as mentioned in the other thread, to demux the original .m2ts files and then remux to mkv, then import those newly remuxed mkv's into multiAVCHD to create the backup to your liking.
Occasionally, some interlaced VC-1 files can be troublesome, but remuxing to mkv can overcome this decoding problem.. at least this has worked for me.
