I have an SR-V10U that no longer works and it seems to be due to a bad video head. I've found a replacement video head online, but I'm not sure how difficult it is to swap the video head. I can get an SR-MV45 but I don't know how it compares to the SR-V10U. I'm not planning on making direct to DVD transfers. Would it be better to put a new video head in the SR-V10U or get the SR-MV45? Thanks.