I just sent you a private message.
I am pretty sure that stutter that you experience is not normal. I play them fine on either my Envy 14 or mini.
Ok got my Zino 410 last week. Unfortunately I did not get the remote option since I already have a MC remote (RC6) and Harmony 650 (found out later about the lack of IR sensor if you don't order their POS remote option). So I ordered the IR board from Dell and installed it tonight. So now I get no response from any of my IR remotes. Will the Zino only work with the Dell supplied remote? So does that mean I have to add another remote to my collection just for the Harmony 650 to learn from? Is there a way to check in device manager if the IR board is working?