Most people do not know the length of their tapes. This is not a problem. Make your selection based on a reasonable guess. When we get your tape at our studio we will determine the exact length and charge the correct amount based on our current prices. Even if you picked the wrong length, the DVD will be made for the correct length and will be priced correctly. We will transfer (and charge) for the amount of time that the video tape is RECORDED. We do not transfer (and charge) for what is left unrecorded on the video tape (blank tape, static and hiss). If the video tape is longer than you selected, we will transfer (and charge) for the entire recorded tape.