Each lab pack includes 5 CD-ROMs with teacher's guide, and features reproducible worksheets and printable award certificates. A $100.00 value! Each GeoSafari CD-ROM includes 15 dazzling learning games that bring animals to life! Windows/Macintosh compatible. Minimum system requirements: 8 MB Ram, 4X CD-ROM drive, 5MB hard drive space, 13-inch or larger color monitor. PC - Pentium or higher, Windows 95 or higher, SoundBlaster compatible sound card. Mac - PowerPC or higher, MacOS 7.01 or higher.