Best encoder for broadcast SD video

Need to encode :30 spots for Internet delivery from DV master. What is my best encoding setting to get broadcast quality SD at the smallest file size for TV stations to use? Also, what tools would be best used for this purpose? Currently own iLife 2006 but will purchase the optimal tool for the job.

Several things you should consider...
Using the quarter-size trick is not going to be acceptable for broadcast. But you are talking about a 30-second spot. In DV-25, that's about 95 Mbytes. On a slow (1 Mbit) broadband connection, that's a twelve minute download. The advantage to using the DV codec instead of compressing further is that while you have to move a lot more data, what you get at the station is identical to the original clip.
You need to consider what compression format the station is going to use at the other end. Is this something you can control? Is this something you happen to know? If you can possibly use the station's native compression scheme, you will do everybody a favor because video does not hold up well under successive recompression. I saw a dramatic example of this recently. One of our instructors brought me a DVD containing a project that had been shot on Mini-DV. It looked great. I copied it back to Mini-DV so that I could import it into my editor, and it still looked great. I did the editing, then exported back to MPEG-2 for the new DVD, at the same bit rate as the old DVD, and it looked really horrible. Recompression is the worst thing you can do to video these days, and if you transmit in, say, MPEG-4 to a station that stores all of its clips as MPEG-2, they are going to get recompression artifacts.
If you have the network horsepower to do it, I would keep the clips DV-25 if at all possible, in spite of the file size.
--Dave Althoff, Jr.

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