ThuggishSplicer,
There is a difference between infallible and inerrant. The Holy Scriptures are translated by many Bible Societies. Some of these, because of there beliefs, have slanted the scriptures a little away from God's original message. By comparing Bibles the message from God is made clear. God's word is infallible, but man's translations may not be.
Inerrant is a term that means that the scriptures were completely accurate when written by the inspired writers, and was understood perfectly by the ones it was first written to. As time went on, several reasons occurred to cause errors to creep into God's word. Cultural expressions of ancient people may be difficult to understand today. The way names were pronounced, and because many people had different names in olden times, has caused errors in spelling some Biblical names. There seems to be some slight errors in some numbers. This is because the Hebrew language lacked words for large numbers.
There were also. what is called random errors, and systemic errors.
It is not possible for a human being to copy the entire Bible without making a mistake. This is a random error, and this error could be copied over and over again. When an error is copied over and over again it is called a systemic error.
There were families of copies of the Bible that were spread over much of the earth. Each of the had the same error. When the families of copies were compared, the errors were easily noted and changed.
God Himself has promised that He would keep His message to all men free from errors that would keep His message from being clear to all who care enough to do research, Ps 12:6,7, Isa 40:8, 1Pet 1:25, John 17:17.
Today almost all the new translations are better than older translations, because many old manuscripts have been found that makes comparisons easy to weed out any errors. You can find the truth in almost all Bibles if you get a Bible with references, and follow them.