Problem with extracting ISO, readme.txt is produced

Sep 9, 2010 at 11:59 AM

I want to extract a large ISO file with SevenZipSharp. This iso contains 292 files. its size = 2,439,485,440 bytes so it is larger than 2 giga byte. The name of the file is en_visual_studio_2010_premium_x86_dvd_509357.ISO. This is the ISO file that contains the setup of VS 2010 .

I don't get an error but instead of extracting files a readme.txt file is produced with the following content:

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

7z gui can properly extract this file.

I use Windows 7, 64 bit. SevenZipSharp release aug 26 2010.

Do I need to change something in my call to SevenZipSharp?

Maybe this error can't be prevented? I do prefer an exception instead of a readme.txt file that contains an error message. Is this error caused by the size of the ISO? Larger than 2 giga byte?