I've been checking the insides of some of my HRs lately and see no capacitor problems (visually). All five of my owned 20-700s are dust free and the 500 that I own had just a little dust in it around the fan. I had reason to pop the top of my 21-200 the other day. Thought the barrel to motherboard connection had broken due to yet another loose barrel lock nut. You would not believe the dust in that thing. Turned out the barrel connection was OK, but I had to get a can of air and blow the thing out. I don't think I've ever had a DVR open and seen that much dust.CCarncross said:My HR20 is still churning along, but I know its not long for this world. Its got some expanding caps that could fail at any time. I've relegated it to recording almost nothing but OTA recordings, so when/if it dies, the recordings will be playable on the replacement DVR. Something to think about if you suspect a problematic dvr, and have other(s).