MultiMASSter software supports the ImageMASSter 4000IDE Series . This option is a major money-saver. It allows the user to store multiple software loads (up to 23) on a single master hard drive. This option works with DOS, Windows 95, 98, 2000, XP and NT (FAT-based software loads. The MultiMASSter option eliminates numerous master drives and excess drive handling, saving time and money.