Optional-bonus-osts.rar
Soundtracks in lossless formats (like FLAC) or high-res artbooks can easily reach several gigabytes.
When you see a file named , it typically contains the Original Soundtrack (OST) and extra digital goodies provided with a game repack or special edition. Since these are not required for the game to run, they are usually separated to save on initial download sizes. 1. Extraction & Setup
The full game soundtrack, often in high-quality MP3 or FLAC formats. Optional-Bonus-OSTs.rar
You do not need to move these files into the game directory for them to work; you can keep them anywhere on your drive to listen to or view. 2. Common Contents These bonus archives generally include:
Because .rar is a compressed format, you will need a utility like 7-Zip or WinRAR to access the contents. Soundtracks in lossless formats (like FLAC) or high-res
These files are purely for your enjoyment outside the game. If you delete them, the game's audio and gameplay will remain unaffected.
Right-click the file and select "Extract to Optional-Bonus-OSTs/" . This keeps the contents organized in their own folder. If you delete them
Digital PDFs or high-resolution images featuring concept art and character designs. Wallpapers: Images sized for desktop or mobile backgrounds.