MMH runs on Windows PCs, so you need to load it on the PC, then use it to add silent Centre & LFE to the Quad flac files on the Hard Drive - its a few clicks and resave.The problem playing Quad FLACS is with the Sony Blu-ray player, not my laptops. I updated the Sony Blu-ray’s player a week ago, but it still doesn’t like the quad FLAC’s. I don’t know how to load that program on my BR player. My laptops play the quad FLAC’s fine. The skipping or stuttering of the tracks on the laptops streaming from the external HD are not Quad FLAC files.
It seems like the Sony was not designed to cope with only 4 channels in files, possibly also with discs, will it play the Quad mixes on Dark Side or Wish You Were Here Pink Floyd discs? A few AVRs can't handle Quad and will often only output the front channels.