MikeB on 01 November 2008
Not surprising, the games are optimised for DVD loading.
On the Amiga the bulk of games came supplied on diskettes with their own optimised loading routines (often using custom file systems), with WHDLoad you can patch such games to install to the harddrive if the game originally did not support this feature. Some games take just as much time to load in-game though, those who don't sometimes needed to be altered by the patch designer (also for adding additional features such as highscore saving, bug fixes, discswap requester removal, copy protection removal, etc).
