A double set DVD-ROM with a Total of over 750 complete comic books including annuals, all articles, Fantastic Four Fan Pages, The Cosmic Pipeline, Bullpen Bulletins and every single advertisement. Fantastic Four with over 575 issues (Nov. 1961 through Dec. 2006) and Silver Surfer 185 issues (Aug. 1968 through Dec. 2004). ======= System Requirements Requires Adobe Acrobat Reader 6.0.1 (which is supplied with product) or above. PC/MAC Mac & PC Windows 98 (2nd edition) Windows Millenium Edition, Windows 2000 with Service Pack 2, Windows NT 4.0 with Service Pack 6, WIndows XP Professional or Home Ed., WIndows XP Tablet PC. 32 MB RAM Mac: Power PC G3 processor,k Mac OS X v.10.2.8 or 10.3 60MB of available hard-disc space (70 MB for Mac) MS Explorer 5.01 or higher