data/1ST_READ.BIN 1 --------------+ loaded only once
data/HALFLIFE_DC.EXE -------------+ loaded only once
data/dumy ---------------------------+ pushing the data to a higher position on the cdr
data/VALVE/GFX.WAD --------------+ loaded at the menus
data/VALVE/gfx
data/VALVE/fonts.WAD -------------+ loaded at the menus (and possibly before the gameplay begins)
data/valve/ files ----------------------+ only loaded once or as often as the game progress demands
data/VALVE/saves
data/VALVE/DECALS.WAD
data/VALVE/neilm2.WAD
data/VALVE/neilm4.WAD
data/VALVE/neilm5.WAD
data/VALVE/CS_BDOG.WAD
data/VALVE/HALFLIFE.WAD
data/VALVE/xeno.WAD
data/VALVE/liquids.WAD
data/VALVE/CACHED.WAD
data/VALVE/SPRAYPAINT.WAD
data/VALVE/maps ----------------------+ only loaded once or as often as the game progress demands
data/VALVE/PAK2.PAK-------------+ loaded almost all the time hence the position at the end of the cdr
data/BARNEY/PAK0.PAK ...
data/VALVE/PAK0.PAK ...
data/BARNEY/PAK1.PAK-----------+ loaded almost all the time hence the position at the end of the cdr