I have tried the Advance Transdata Rice16 and the Microchip Picmaster. My company has just purchased the new Microchip emulator, but we are waiting for another part before we can try it. I have found the Rice16 much easier to use than the Picmaster. The Picmaster uses an ISA slot in your PC, the Rice16 uses a parallel port. The rice16 emulator device specific emulator probe is housed in the same enclosure at the emulator itself, and is half the size of the Picmaster. The picmaster probe is a circuit board that hangs on the end of a cable from the emulator (our products are entirly surrounded with metal, the probe circuit board shorts out on something if I wasn't really careful). There is a maximum speed of 10 mhz with both of these. I'll know how the new microchip emulator works in a week or two if people are interested. The biggest selling point of it for us was the maximum speed of 33mhz (might even be 40mhz). Gregg, Gregory Holcomb Software Engineer Hover-Davis, 10 Turner Dr., Spencerport, NY 14559 Phone 716-352-9590 Extension x-20 gholcomb@hoverdavis.com