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You could call it a universal disk format. https://en.wikipedia.org/wiki/Universal_Disk_Format

I tried UDF for a few months on a macOS/Linux/Windows triple boot. It doesn't work reliably enough. I've switched to ext2 using e2fsd and Paragon (which I paid for) on Windows and macOS respectively. Fingers crossed.

I wish someone would port F2FS to Windows and macOS. This could be a good starting point for macOS.

What sort of issues did you have with udf?

Windows threw up CRC errors. I am not blaming Windows here, that would be unfair. Perhaps it was the only one that checked CRCs on read and one of the others didn't write CRCs on write.

My use case was to store many large git repo clones and MP3s.

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