The smaller the station, the more likely it is that they don’t have the right gear or manpower to handle numerous format conversions. They are asking for a DV25 format like DVCPro25 or Sony’s version of the same thing, DVCam25, these decks play each competitor’s tape formats but can only record in their own format. They will also, with an adapter cartridge, play a Mini-DV which is also DV25.
The cameras they specified are broadcast-quality analog format cameras, but they use big sensors and big lenses, and generally are used in a context of pro lighting and sound gear as well, this is what the station was getting at, because home camcorders running in DV25 format have pitiful image gathering qualities by comparison. It’s not the codec in this case, but the camera that made the difference. The betacam, dubbed to a DV25 format tape, will look better than a master made from the consumer grade home camcorder in the same format.
Practically speaking, you really don’t know,or want to know, how the sausage is made at the station. Since play to air these days is about 99 percent done from a hard drive based server, your DV25 tape is going to be played into some kind of converter/compressor system, either an NLE workstation or more likely some video card connected to the server. It will take an analog output of the station’s DV deck, re-digitize that into probably mpeg2 I’m guessing. That mpeg file will then be played to air.
Theoretically, if YOU did that compression yourself, taking great pains to keep quality high, it would behoove the station to take your data DVD disk and import the stuff direct to their server.
However, everything I’ve ever heard about small market stations is that this is almost never done. Their workflow is set in stone so that any dummy can execute the work to a basic and uniform standard, and any process that’s not part of the daily approved workflow, even a superior process like importing your files from a data DVD or portable hard drive, well, they don’t like square mpegs in their round holes.
Master in highest quality, but resign yourself to your “baby” getting badly mauled on the path to the final destination.