I recently took apart a combination VCR/DVD player. Along with other questionable quality inside including a green LED display viewed through a red acrylic front panel and a DVD player assembly using only 3 brushed DC motors, I found that there were 3 mystery components marked as 27KΩ 2W resistors in a form factor that I have never seen resistors in.
As you can see in the picture, I decided to cut one open and found that it was a 1/2 watt carbon composition resistor potted in a plaster-like material. It had also failed short for an unknown reason.
What is the reason for potting the resistor in a larger package like this?
Update: I cut up another one of these resistors in the name of science and it appears to have a metal film or wire wound resistor inside. The core is too hard to cut with diagonal cutters.