It sounds like you're looking for information on the experience on PS4 , specifically regarding ROM/pkg files, updates, and DLC for unofficial or backup purposes.
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In terms of technical specifications, the Resident Evil 4 remake on PS4 requires a minimum of $$ 30GB $$ of free space for the base game and $$ 10GB $$ for each DLC pack. The game also supports $$ 4K $$ resolution at $$ 30fps $$ and $$ 1080p $$ at $$ 60fps $$, providing a smooth and visually stunning experience. resident evil 4 remake ps4 rom pkg update dlc new