Keep it simple. I have found that the more information you pack into a document, the less likely it will be followed.
If clients are providing video, give them the minimum amount of detail, such as:
Video must be of DVD quality. Acceptable formats include:
DV tape
DVCAM tape
DVCPRO tape
Authored DVD
MPEG-2
Once you get into allowing DVD or QT/AVI files, you are bound to get any number of formats.
Let them call you and say “can I send you a Quicktime movie?”
As we know, “Quicktime movie” or “AVI” can mean anything from Cinepak to H.264 – always better to get into details on a case by case basis.
We get a lot of video made by others on their iMac or using Windows Movie Maker. Even these easy to use programs have too many options for exporting video.
Also, if you are using an intern or entry-level person for ingest of outside material, make sure they know what is acceptable, otherwise you could end up with a DV file transcoded from inferior original quality video (flv, digicam etc).
Mike Cohen