These days, with AAC being supported pretty much everywhere you're probably better off just using the " -f 140" option to get the 128kbps m4a file, which at le

These days, with AAC being supported pretty much everywhere you're probably better off just using the " -f 140" option to get the 128kbps m4a file, which at least saves the further (albeit subtle) degradation caused by another lossy to lossy transcode.