I've just tried this technique on a dead rio receiver; the trick is to straighten the pins as much as possible before bending them hard down. This way, they stick out the bottom enough that soldering the "sandwich" is very easy with a little SMT flux. Only takes 5 minutes or so per chip including bending time.

I was about to take my unit apart to try it when I remembered I have a mk2, not a mk2a. Doh! In theory I could add another 4MB to this to take it to 16, but it's not quite as fun as an extra 16MB!

Hugo