Information about scale, cropping, and rotation is applied automatically to the high-resolution image during production. This method is excellent for cropping without dealing with a high-res file. The PSImage file will be smaller and faster to deal with than the high resolution file. The DCS form of an EPS file works, but needs to be merged prior to output. Scitex CT files work smoothly but are not as commonly used.
TIFF files are at their best when filling a picture box with an outline rule, or frame specified.
Vector graphics are created in a drawing program, such as Illustrator or Freehand and they should be saved as EPS files. If you have a placed EPS inside of an EPS be sure to save the embedded EPS with the file or the link may not work. Use caution when specifying line widths. A hairline rule will often print acceptably on a laser printer but may be so fine that it is barely visible when output at high resolution to film. Illustrator or Freehand are typical of vector drawing programs.