VII:
Shinra HQ
Kalm Flashback
Fort Condor
Desert Prison
That mountain place after Icicle Inn


IX:
Honestly, the whole first disc until you leave Lindblum
Fossil Roo
Oeilvert
Ipsen's Castle


FFX:
Everything until after Luca/Blitzball (except for maybe Yuna's first summon/Besaid Temple)
Calm Lands
Mt. Gagazet
Zanarkand
Sin