I've had my 622 about a month now and i have expieriencing daily dropouts through the optical digital audio output. Without fail at least once a day the audio will start to drop out through the digital output but will be fine from the analog RCA ports. I have to do a reboot (holding power till reboot) to fix the issue, only to have it return later in the day. I have tried changing the settings in the Dolby Digital menu but no change and my decoder/receiver works fine with other sources so i ruled out that problem. I am getting a new unit shortly, but is this a universal problem? Otherwise the 622 is great. Coming from a Replay 5040 I wish it was able to network the unit to my computer and had the commercial advance feature, but i'm happy otherwise.