Is anyone but me having trouble with their Astell&Kern Jr synching with J-River Media Center? About a month ago my AK Jr. started refusing to play some .flac files, stating the format is unsupported. Today when I loaded a new batch of songs on my Jr. it refused to play ANY of them, none of them were supported. So, I deleted everything off my Jr. and loaded a fresh set of files, .wav this time. Even with that so far, a couple of files have been refused by my Jr. I don't know if this is an Astell&Kern/ I-River problem or a MediaCenter/ J-River problem. I'm posting help requests on those sites as well. I hope someone here can help, though.