Hello, I have a mkv (Image: H264 Audio: AC3 5.1). I want to convert it to MP4 (Image: H.264, Audio: AAC 5.1). I tested with Subler, with the multi-channel option (the only one for which Subler said there was 6 ch), but MediaInfo tells me that there are only 2 channels. Importing the file into Adobe Premiere Pro CC, there has 6 channels, but only 2 emit sound. Others are empty. How can I convert AC3 to AAC, keeping a true 5.1 surround sound, and editable into Premiere Pro? Thank you !