Do not fall for the 300MB "Super Compressed" garbage that destroys the audio. Instead, learn to convert your own ISO to a Level 9 CSO. You will get a file roughly 1.08GB —intact, beautiful, and ready for battle.

Emulators like RPCS3 work best with specific file formats.

When Tekken 6 was released in 2009 (arcade) and 2009/2010 (consoles), it was considered a hefty title. The PlayStation 3 version, which is often the target for emulation and digital archiving, clocks in at approximately depending on the region and updates. For context, this was large for the time, but compared to modern games that easily exceed 100 GB, it seems modest.

"The compressed file won't move to my PSP."