CyberHome CH-DVR 1500 Progressive-Scan DVD+R/+RW Recorder and Player , Silver
Design Flaw discovered
My DVR1500 had all the troubles and symptoms described here.  However an electronics engineer at my workplace examined it for me and discovered a design flaw.  Two of the main capacitors on the motherboard are smaller in capacity than they should be and this allows the voltage to surge all over the place ultimately leading to the demise of the machine.  He replaced them for me with larger capacity ones and the machine cooled down and now works like a charm.  Don't know if Cyberhome has discovered this or will admit it, but it seems to be working for me. The 4-star rating is for post repaired machine.