Best Compression Methods for 'Specific' Games. Q&A

[L33THAK0R]

All results include the installer's weight (usually between 4 - 9mb)

Avatar: The Game, James Cameron’s

3.31 GiB >>> 1.98 GiB

xtool 0.6.5 + srep + lolz

Batman: Arkham Knight

51.75 GiB >>> 26.2 GiB (Incl. Optional Videos + Lossless Videos) | 25.3 (Incl. Lossy Videos)

Note: In order to properly create lossy videos you have to extract the cue points from the appropriate USMs'. This process isn't tricky and only takes around a minute in an ideal setup however calculating the offsets and translating them into usable integers can take a hot minute. As I'm sure those who have done a similar job are aware this process can't be automated due to the lack of consistency that cue timings are stored within their appropriate headers, this was definitely more so a proof of concept considering the fact there are ~880 videos that require cue point decoding.

xtool (I forgot to document the version I used, since I did this one back in mid 2020) + uelr + srep + lolz

Far Cry 2 (Fortunes Edition)

3.27 GiB >>> 1.62 GiB

delzorec + srep + lolz

Just Cause 2

4.08 GiB >>> 1.00 GiB

Note: Final size could've been smaller (~950MiB) but I included a couple dozen QoL fixes that added a bit of weight in additional texture data.

xtool 0.3.21 + msc + srep + lolz

Mad Max

32.88 GiB >>> 3.55 GiB (Incl. Lossless Videos) | 3.50 GiB (Incl. Lossy Videos)

Note: Lossy videos were definitley just an experiement, 1080p Bink2 videos rescaled to 720p Bink1, even at 99% the target filesize look like dog-shit. Honestly just wanted to see how small I could get things. There is potential room for improvement if someone can pack the ~900 MiB of dialogue thats packed into one of the Banks, but it's encoded in a format that I can't seem to process, or even losslessly transform to and from a packable format.

xtool 0.3.21 + oggre + srep + lolz

The Surge

21.78 GiB >>> 3.86 GiB (720p Lossless Videos) | 3.72 GiB (720p Lossy Videos)

Note: 1080p + 720p videos both exist in the original game files, I just chose to present 720p for the results as its the smallest, valid, lossless size. Use a LZ4 library to recompress, I got pretty similar results accross a good dozen or so libraries, but some streams were still dropped, I'd encourage people to investigate further but I honestly spent too much time on this series for me to justify spending any more time testing is tricky.

xtool 0.3.21 + oggre + srep + lolz

-----------------------------------------------

I would post more, but these are just the most interesting results I've gotten. I've managed to beat a fair few records posted both here and by other repackers on their own websites but only by using more modern methods and by managing to process troublesome blocks of data by patching out the offending data.