I was looking for this information in all the forum , but I didn't find any thing that can help me, about my DVD. I received it as a gift from US, and I want to do it MR, or even make it zone 2 at least!! I found a lot of information about SD-220E but it isn't even similar. the mine is a combinated DVD/VCR similar to Tosh SV-291. Even zoom - 6- 0- 6-zoom to get firmware version doesn't work. I'll very grateful if some one tells me some thing about this model that I don't know.