I don't use a ZIF. I use the Moates.net HRD1 adapter http://www.moates.net/hdr1-memcal-heade ... l?cPath=64 The HRD1 adapter allows the chip to be erased / flashed in the memcal. It might even be possible to directly solder the 27SF512 into the memcal, but I don't know how much heat the 27SF512 can handle?

dave w