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7-zip error unpacking Win 7 .iso --> help!:

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deputc26

Senior member
I'm trying to unpack the iso using 7 zip but it always returns this error in a readme file where the files should have been extracted to.

"This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification."

I've heard of non-updated XP installs having this problem not win 7 or vista. I got the same error in Win 7RC 64bit, Vista Ultimate 32 bit and XP Pro 32 bit. Anyone have a solution or know how to extract that iso with a different prog?
 
deputc26 said:
I'm trying to unpack the iso using 7 zip but it always returns this error in a readme file where the files should have been extracted to.

"This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification."

I've heard of non-updated XP installs having this problem not win 7 or vista. I got the same error in Win 7RC 64bit, Vista Ultimate 32 bit and XP Pro 32 bit. Anyone have a solution or know how to extract that iso with a different prog?
Click to expand...

Try PowerISO or MagicISO:
 
Forgot to mention I'd already tried reinstalling 7-zip and using different versions, no-go. Looks like poweriso is working right now though so thanks.
 
Current OS should at least read UDF without requiring a third-party driver but another way is to mount the image with VirtualCloneDrive and then copy the files.
 
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