Remember your overseas audience may have moral and technical issues.

Morally, there may be religious or political problems with your content. Arabs, for example, are not pleased to be shown animal health videos which feature pigs. Check these issues out at an early stage.

Technically, they may use a different format. Television and video come in three flavours - PAL (as in the UK), SECAM (France and Russia) and NTSC (USA).

Make sure your VHS copies are made to the right standard.

This is not a problem with CD-ROM, as file formats like .WAV for audio and .MPEG for video are universal standards.

It can be a problem with DVD, as this has regional standards, to allow Hollywood to control the distribution of feature films around the world.

Your producer should advise you on any technical issues.