I purchased a Digital Camcorder online(I have not received it yet), it takes DigitalDV tapes, I am not exactly certain how to use these tapes. I know that they go in my camcorder much the same as video cassettes go in a regular camcorder. However what I want to know is do these tapes act in the same way as my SD memory card does in my digital camera? Basically, I just use it to store my movies untill I am able to download them to my PC? Also, would anyone have any idea as to what type of battery this kind of camcorder will take?