Wis. Stat. § 885.47

(1) PLAYBACK EQUIPMENT. Each court may establish rules providing for the availability of playback or reproducing equipment. Such rules shall provide for an adequately trained operator. Minimum playback equipment shall be a videotape player of a commonly available type and one monitor having at least a 14 inch diagonal screen. Color equipment is not required. If a party uses videotape which is not compatible with the available playback equipment, the party shall furnish playback equipment or convert the videotape to a format compatible with the available playback equipment at the party’s expense, which shall not be chargeable as costs.