Sony DCR-TRV250 Fix
I have a Sony DCR-TRV250 and I fixed mine for the time being by smacking the side (can't remember which side but probably doesn't matter). I got this idea from someone else's suggestion about 4 weeks ago and it's still working. Just came back from vacation and it worked fine. Of course it may be unreliable and decide not to work at some time in the future but at least I can limp along until I can afford a new one.