Import DDR EXTREME (system573) songs to A20+

USAGE:

(offline) mount windows iso ADMIN CMD: dism.exe /online /enable-feature /featurename:NetFX3 /Source:D:\sources\sxs /LimitAccess

Extract dxsdk_aug2007.exe\Utilities\bin\x86 folder with 7-zip(Open Inside) to here

pip install lxml typing_extensions
Copy ontents\data\arc\startup.arc and contents\data\arc\thumbnail\jacket_thumbnails_ja_8.arc to here
Run python3 ddromni.py
Copy the resulting contents\ over your original

this is quickly thrown together and not done in an ideal way; please expand on it or get use out of it as is (I just add a few songs such as sode and cart, but 95 out of 454 will be used from packages if you leave all 454 in the folder. this shouldn't hit any buffer limits on A20+)
artist name is set to OMNIMIX for all added songs because artists are not in the Extreme package.json
background stage is set to 3 for all added songs
ffmpeg audio rendering offset is tweaked for Extreme. -ss 0.0507 will need to be something else for other games
do not use this on a network as the generated mcode IDs will not be unique
the diff levels may not be accurate (old_diff * 1.5 rounded down)
jacket aspect ratios are messed up
most preview volume is deep fried (tried to match original preview levels)

Name		Name	Last commit message	Last commit date
Latest commit History 1 Commit
.gitignore		.gitignore
README.MD		README.MD
arc.py		arc.py
arcutils_create.py		arcutils_create.py
arcutils_extract.py		arcutils_extract.py
ddromni.py		ddromni.py
dummy.xap		dummy.xap
lz77.py		lz77.py