I got mine from World-Import. Why, because they modify the units with hardware modification method and not software. Software modification will not support firmware updates without losing the region free feature. So the question you should be directing to is the vendor and ask, "Can the unit be flashed and if so, will the region free feature remain intact?" That is a question I should have asked when I purchased a region free unit from Bombay.com. Wait a minute, I did ask that question with their site email, but never got a reply. "Dumb-shit" me went ahead and ordered player anyway from BomBay. Anyway after doing a firmware upgrade, the unit lost the region free capability. It no longer supported B/C region disk. I ended up sending the unit back and getting a refund.
Then I ordered from World-Import. I tried to save $25 when ordering from Bombay, but in the long run, I ended up paying $25 more for a unit that could be flashed and not lose the region free feature AND had wasted 2 weeks of turnaround time in getting the new unit from World-Import. So in-short, don't buy a unit that has been hacked with software, but buy a machine that has the hardware modifications. You'll thank yourself in the morning. If you do not get a reply from 220, then don't trust them. World-Import will answer your question within a hour or so.
Both mine came from Bombay. Both are hardware mod.