Hi,Since I don't have a dedicated CD drive or CD collections what I normally do is I download all FLAC,WAV,320kpbs mp3 in my pendrive, I connect it to my Samsung plasma TV USBIN and by using(PCM mode in TV)I bitstream it my receiver using the optical out of my TV & in the receiver I select either stereo or direct mode. Now when I use stereo mode everything sounds good especially the bass but when I select Direct the bass is weak. Now I don't understand want happens when I select direct mode in receiver. I mean where is the digital to analog conversion taking place?