While I have a little bit of everything, I am most proud of my IBM PC titles. I grew up on the PC and have some genuinely rare titles released for it. (Ironically, some of my most rarest, like Wibarm, are not worth much money since there is no demand for the genre (Wibarm is an action game).
Note: If I only have Media grade defined, it means that al I have is the media (cart only, diskette only, etc.).
Mint Sealed: No noticable defects and sealed in original factory or store shrinkwrap or sticker. The best grade possible.
Near Mint: No noticeable defects, but not sealed.
Fine: One or two slight defects (small scratch, slight worn corner on box, etc.) that prevent a Near Mint rating.
Very Good: More than one or two slight defects (slight crease in manual, all corners slightly worn, etc.). Still in acceptable condition.
Good: More severe defects (box slightly torn or crushed; noticable wear on media, manual, or other materials). Acceptable only if the item is hard to find or highly desired by the collector.
Excess Defects: Excessive and/or unusable defects (crushed, ripped, or sheared box; torn manual pages; box or manual written on in marker, etc.). Acceptable only if the item is wanted for non-collectable purposes (like actually playing the game) or for "parts"
Item Missing: The item in was originally included with the factory sealed box but has been subsequently lost.