I have Season 5 of The Office in 720p high definition, but after ripping them to .mkv files, I want to play them in iTunes. So, like DVDs, I booted up Visual Hub, dropped the files in, hit optimize for all devices, with H.264 encoding and Quality as Standard. The files were about 600MB each. When Visual Hub finished and threw them in iTunes, the quality was horrible and at about 150MB. I just want to keep it at the same quality as before, just a different file format. How do I do this?