Many Version 13 builds were compiled from late-stage development code. Hackers and "ROM hackers" scour these ISOs for debug menus, unused textures, or developer comments left in the code. This is historical archaeology.
The primary reason retro gamers hunt for the is the specific lineup. While discographies vary by region (NTSC-U vs PAL), Version 13 is famous for including demos for absolute classics. INTERACTIVE MULTI GAME DEMO DISC VERSION 13 ROM
Here are some potential points to consider in a review: Many Version 13 builds were compiled from late-stage