Your Friendly A.I Overlord Posted May 1, 2022 Share Posted May 1, 2022 Recently the Cemu developers implemented a feature in the latest (experimental) Cemu builds to combine and compress Wii U games + their updates and DLC into a single file with a .wua (Wii U Archive) extension. This file format can be run directly from your Wii U roms folder and updates and DLC no longer have to be installed into Cemu 's virtual file system. Not only does this save some space, but managing your Wii U games becomes a lot easier with a single file per game instead of thousands in a folder structure. Coincidentally this makes importing your Wii U games into LaunchBox a lot easier too. No longer do you need to manually add the game 's executable (.rpx) to LaunchBox or use a LaunchBox Wii U importer plugin as importing single file games is as easy as it gets. Before you start, backup your current Cemu install. When combining and compressing your games into single files your old games won't be deleted. So you can experiment and delete them afterwards. - Download the latest Cemu build here. I started with a fresh install. - Open Cemu and point Cemu to your Wii U games folder. - Go to Tools --> Title Manager. Then sort by Type --> base. - Right click your game --> Convert to compressed Wii U archive .wua As I did a fresh Cemu install, after compressing my games into single files, I copied Cemu's controllerProfiles / gameProfiles / sdcard / shaderCache folders from my old Cemu folder into my new Cemu folder. Then I copied my old savegame folder (cemu\mlc01\usr\save) to the correct folder in my new Cemu install. Of course you don't need to start with a new Cemu install, but remember, with the new file format you don't need to install game updates and DLC's into Cemu's virtual file system. So you can remove (please backup) the cemu\mlc01\usr\title folder. With the 22 Wii U games that I have, that saved 22 GB of space in the Cemu folder alone. In LaunchBox you can edit your Wii U games to point to the newly created .wua files or just re-import your Wii U games folder. Maybe check if your emulator paths are still correct in the LaunchBox emulator settings. Lastly a rediit thread with some additional info. 7 1 Quote Link to comment Share on other sites More sharing options...
Your Friendly A.I Overlord Posted May 1, 2022 Author Share Posted May 1, 2022 I did a comparison: Old Wii U games folder: 23 games, 176 GB and 182.056 files in 8.239 folders. New Wii U games folder: 23 games, 144 GB and 23 files in 23 folders. Old Cemu folder: 24.8 GB and 80.605 files in 6.515 folders. New Cemu folder: 2,18 GB and 3.977 files in 1.463 folders. 3 Quote Link to comment Share on other sites More sharing options...
totoro Posted May 2, 2022 Share Posted May 2, 2022 Thanks god, this makes life sooo much easier. Now hopefully something similiar is gonna happen with RPCS3, Xenia, and Xemu. Those games are also way to big and the file/folder structure too complicated. Quote Link to comment Share on other sites More sharing options...
Suhrvivor Posted May 3, 2022 Share Posted May 3, 2022 This is amazing! I hate not having 1 file per console game. I'm not wasting my time converting my games though (mainly because of having to verify integrity), I'll just wait for an Archive.org link 😎 Quote Link to comment Share on other sites More sharing options...
totoro Posted May 3, 2022 Share Posted May 3, 2022 2 hours ago, Suhrvivor said: This is amazing! I hate not having 1 file per console game. I'm not wasting my time converting my games though (mainly because of having to verify integrity), I'll just wait for an Archive.org link 😎 Yep, exactly this 😄 Quote Link to comment Share on other sites More sharing options...
C-Beats Posted May 3, 2022 Share Posted May 3, 2022 6 hours ago, zugswang said: If you have the whole set, get ready to spend days and days converting them, because unless i am not seeing it you can only do one conversion at a time as there is no bulk convert. They've released a stand alone tool that can be used to do it in bulk called ZArchive. They have a link to it in their changelog that mentions this change. Quote Link to comment Share on other sites More sharing options...
TheNewClassics Posted May 3, 2022 Share Posted May 3, 2022 I tried out ZArchive, wasn't able to do bulk conversion but I'm probably doing it wrong Quote Link to comment Share on other sites More sharing options...
C-Beats Posted May 3, 2022 Share Posted May 3, 2022 23 minutes ago, TheNewClassics said: I tried out ZArchive, wasn't able to do bulk conversion but I'm probably doing it wrong Yeah, you may need to make a BAT file or small program to do it effectively Quote Link to comment Share on other sites More sharing options...
Ʉ₦₳VØ₩ɆĐ Posted September 11, 2022 Share Posted September 11, 2022 On 5/3/2022 at 11:02 PM, C-Beats said: They've released a stand alone tool that can be used to do it in bulk called ZArchive. They have a link to it in their changelog that mentions this change. this only packs\unpacks, does not convert to wua Quote Link to comment Share on other sites More sharing options...
Hifihedgehog Posted October 3, 2022 Share Posted October 3, 2022 (edited) On 9/10/2022 at 8:56 PM, Ʉ₦₳VØ₩ɆĐ said: this only packs\unpacks, does not convert to wua This. The tool converts to the compression format that WUA uses. However, it does not know how to organize the files appropriately nor does it understand how to batch through the files either or most importantly identify one game from another for that matter. Ultimately, bulk support will need to be done upstream in Cemu since that is only what has the necessary bits for the archive file organization and metadata. ZArchive exists because they invented a new compression format that is insanely fast at finding and decompressing a single file at a moment's notice from a pool of tens of thousands of files (hence the billed support for "random-access reads"). It is able to instantaneously decompress a file without having to decompress the entire archive contents, making it much faster than traditional methods like .ZIP or .RAR given the high file counts of some games. Therefore, it is purpose built for The Legend of Zelda: Breath of the Wild that is a game with tens of thousands of files that can't easily live and run out of a slowly decompressed zip file. Edited October 3, 2022 by Hifihedgehog Quote Link to comment Share on other sites More sharing options...
marcosgaming Posted November 9, 2022 Share Posted November 9, 2022 Hello, anyone knows if there is a way for to convert all my games collection Nintendo Wii U in wua in only one click? Please... Quote Link to comment Share on other sites More sharing options...
Flames Posted November 17, 2022 Share Posted November 17, 2022 I use the CEMU's option to convert game into .wua format, but it seems very big, like 20 Gb per game. Am I doing something wrong? Quote Link to comment Share on other sites More sharing options...
norwichred Posted December 15, 2022 Share Posted December 15, 2022 On 10/18/2022 at 4:36 AM, teamgt19 said: Days to convert a whole set?! I Started on October 9th , It took took me a 6 days to decrypt and extract the folders for WUA compression. Another 3 days to Save each title by hand. (I was also decrypting PSVita games for a NoNpDRM release.) Currently i Have the 138 titles (I think I'm missing around 30) from the USA Disc set with Updates and DLC (813 GB) and 297 eShop titles with Updates and DLC (140GB). Since no-one seems to want to do it I have uploaded it to archive.org. If you can identify any of the missing games please let me know so i can add them. Started uploading on October 18th, I finished on November 6th. All in 28 days... https://archive.org/details/nintendo-wii-u-eshop-usa-full-set-wua-format-embedded-dlc-updates https://archive.org/download/nintendo-wii-u-usa-full-set-wua-format-embedded-dlc-updates Also my PS Vita Archive https://archive.org/details/sony-playstation-vita-usa-full-set-nonpdrm-format https://archive.org/details/sony-playstation-vita-usa-full-set-nonpdrm-format-dlc-updates - Thank you SO much for this! It must have been a massive undertaking but I, at least, really appreciate it! Quote Link to comment Share on other sites More sharing options...
norwichred Posted December 15, 2022 Share Posted December 15, 2022 I wonder if I can be a real pain and ask for some assistance? I started with .wux files that I downloaded off the internet but when I tried to run the .wux file I get an error saying it's encrypted and needs the key. So I downloaded your .wua files and tried with those but I get the error message saying that CEMU doesn't recognise them. Can you help me at all? Quote Link to comment Share on other sites More sharing options...
teamgt19 Posted December 15, 2022 Share Posted December 15, 2022 3 hours ago, norwichred said: I wonder if I can be a real pain and ask for some assistance? I started with .wux files that I downloaded off the internet but when I tried to run the .wux file I get an error saying it's encrypted and needs the key. So I downloaded your .wua files and tried with those but I get the error message saying that CEMU doesn't recognise them. Can you help me at all? what version of cemu? drop this in the root of cemu. wua support is only in newer versions of cemu try updating to a recent version https://cemu.info/changelog.html Quote Link to comment Share on other sites More sharing options...
teamgt19 Posted December 15, 2022 Share Posted December 15, 2022 On 11/9/2022 at 2:12 PM, marcosgaming said: Hello, anyone knows if there is a way for to convert all my games collection Nintendo Wii U in wua in only one click? Please... there is no tool yet to batch convert. Quote Link to comment Share on other sites More sharing options...
teamgt19 Posted December 15, 2022 Share Posted December 15, 2022 On 11/17/2022 at 1:57 PM, Flames said: I use the CEMU's option to convert game into .wua format, but it seems very big, like 20 Gb per game. Am I doing something wrong? it depends on the game some use alot of assets that do not compress as much as others. games will range from 100 mb or so all the way to 25gb or so. check the size vs the original folders if its smaller and works then odds are you did it right. Quote Link to comment Share on other sites More sharing options...
norwichred Posted December 15, 2022 Share Posted December 15, 2022 I only downloaded it today so most recent version. I’ll try that keys thing later this evening and get back to you. Thank you. Quote Link to comment Share on other sites More sharing options...
Flames Posted December 16, 2022 Share Posted December 16, 2022 On 12/15/2022 at 4:39 PM, teamgt19 said: it depends on the game some use alot of assets that do not compress as much as others. games will range from 100 mb or so all the way to 25gb or so. check the size vs the original folders if its smaller and works then odds are you did it right. Most of them or are smaller, or at least the same size. Many thanks. Quote Link to comment Share on other sites More sharing options...
teamgt19 Posted December 17, 2022 Share Posted December 17, 2022 (edited) 41 minutes ago, Flames said: Most of them or are smaller, or at least the same size. Many thanks. It can't be compressed too high. The format was designed so that you could have all of the files in one file with some compression but allow for random read access to all the files in the archive. It's a compressed archive that you can actually run the game without decompressing the entire archive. Fair trade for the ability to have everything in one compressed file. Edited December 17, 2022 by teamgt19 Quote Link to comment Share on other sites More sharing options...
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