If you have ancestors from the (then) east portion of Hungary, that now belongs to Romania, you're in luck. Romania has given photographers access to church registers (baptisms, marriages, deaths), and we can now easily research our Hungarian/Romanian ancestry.
Due to the Treaty of Trianon in 1920, after World War I, much of the south-east portion of Hungary was ceded to Romania (map above).
With the allowance of photographing the church registers, it has opened up a wealth of information to genealogists that hadn't previously been available before. The LDS haven't been allowed into much of Romania, to microfilm and preserve records. Because of that, anyone with ancestors whose home village now lies within the border of Romania, has probably come to a stand-still. Thanks to a good friend of mine, I have made contact with a phenomenal photographer in Romania, that photographs church records professionally. I have already used him several times, and I would recommend him to anyone!