Same for you, stop spamming my topics.

I already gave you another approach for going about this topic and you ignored it. You may have tried it but did not post feedback. FYI this is considered "bumping" a thread at worst but hardly spamming. Drop the attitude and you may find people more willing to help. Just a thought.

Yes this is likely an encoding issue. Don't bring it back to a managed byte array without specifying the source encoding or better yet just stream one file to the other.

Maybe that is the problem, it is binary data after all. Perhaps you should just leave it. Quit changing binary data to an ASCII encoded string and leave it as a byte array.