The following is a list of acceptable art formats:
.cdr (corel draw versions 8,10, 11)
.ai (version 3)
.plt (HPGL plotter file)

The above formats must be converted to curves before sending.
.jpg, .eps & .bmp files should be 300 dpi or greater. Images taken from web sites are not suitable for reproduction as they are generaly low resilution files.