I'm looking for a way to transcode an AC3 Audio track from a MKV file to Applelossless. I have already emailed the maker of MKVtools about the idea of adding the feature. Until than, I already can transcode FLAC to Applelossless with the application XLD. So if someone can point me in the right direction of transcoding AC3 to FLAC it would be a great help. Than I could simply go AC3 to FLAC to ALAC (Applelossless) I'm simply trying to do a 100% lossless transcode of a H.264/AC3 .MKV file to H.264/ALAC .mp4 since iOS and Quicktime X don't play too nicely with AC3. Thanks!