This is the same information you can get from the API-based crawl errors feed. The UI-based CSV also only shows you the current snapshot of errors and lists only up to 1,000 URLs (the same as the UI).

A week ago, Google revamped their Webmaster Tools Crawl Errors user interfaces and reporting. It led many asking, how do I get the detailed reports I am use to getting ...

Google has just revamped the crawl errors data available in webmaster tools. Crawl errors are issues Googlebot encountered while crawling your site, so useful stuff! I originally started this ...

This change will make a lot easier for webmasters to track down crawl errors, why they are happening, and how to fix them without having to do a lot of back and forth checking with tools to determine ...

Google announced last night a new feature within Google Webmaster Tools specific for tracking crawl errors on smartphones. There is now a new filter within the crawl errors section of Google ...

New Alerts For Crawl Errors Via Google Webmaster Tools Published July 13, 2012 By Sean Griffey ...

Google today unveiled a new navigation for its Webmaster Tools. The updated design is available now, and there doesn’t appear to be an option to revert back to the previous layout. Google says ...