The first time I flashed my lite-on with my via card, jungleflasher worked great. No problems. But then I wanted to do a video tutorial so I tried re-flashing it. It started freezing after the erase. I tried every configuration of drivers that I could think of, but it would still freeze after the erase. I had downloaded the latest version of dosflash and I was reading the readme that came with it and it said that on the erase, you need to use a seperate power supply or the drive would most likely return a busy state on erase. So I thought what the heck. I pulled out an old AT power supply hooked everything up, and just for giggles, I used the tray half closed trick too. I used the power supply to power cycle the drive and not my CK3 pro. Well, it worked. Not only was I able to flash that drive again, but 3 more times after that, plus another one of a friends.
Maybe this will help someone having similar troubles.