the 2 plastic boxes are about approximately ~2.0L, filled to brim with old PC game titles CD-roms. Operating System: Dos to Windows XP (varies with title and its age). $80 (neg.) for both (self-pick up), some of the titles include: starcraft, diablo II, math blaster II, quake 3, etc. too many to list. awesome bunch to play and pass time! contact me at eight-five-five-four eight-zero-zero-four.