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System Center Capacity Planner 2007 is a pre-deployment capacity planning and post-deployment change analysis solution that provides best-practice guidance and hardware-specific knowledge to help information technology professionals make solid architecture decisions when planning a new deployment or changes to an existing deployment for Microsoft Exchange Server 2007 and other Microsoft server products as add-in application models become available. Before installing System Center Capacity Planner 2007
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Problem: This disc contains a "UDF" file system and requires an operating system that supports the ISO-13346 "UDF" file system specification.

Cause: When i tried to extract Visual Studio 2008 ISO file, only one txt file get extracted saying "This disc contains a "UDF" file system and requires an operating systemthat supports the ISO-13346 "UDF" file system specification."

Solution: Refer the following microsoft support which solved the problem for me.
http://support.microsoft.com/kb/321640
http://support.microsoft.com/kb/899527

More ref: Download1

Some usefull Information about File Systems

Microsoft Best Practices Analyzer for Windows SharePoint Services 3.0 and the 2007 Microsoft Office System
The Microsoft Best Practices Analyzer for Windows SharePoint Services 3.0 and the 2007 Microsoft Office System Best Practices Analyzer programmatically collects settings and values from data repositories such as MS SQL, registry, metabase and performance monitor. Once collected, a set of comprehensive ‘best practice’ rules are applied to the topology. Administrators running this tool will get a detailed report listing the recommendations that can be made to the environment to achieve greater performance, scalability and uptime.

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New SharePoint 2007 article on CodeProject.comArticle that discusses how to use content types to define and manage the metadata and behaviors using SharePoint 2007.http://www.codeproject.com/KB/sharepoint/publishingtemplates.aspx