I posted when I first published my YouTube video to demonstrate the usage of our TL866 EPROM Programmer Adapter for 27C400/800/160 and 27C322 16bit EPROMS.
The video includes a brief introduction, followed by backing-up a 8Mibit FLASH ROM from a Sega game cartridge. Finally, writing a 27C322, the largest 32Mibit MASK ROM pin-out compatible 42 pin EPROM.
You'll find the post and video here: EPROM Programmer Adapter is now up on YouTube