Codec Tweak Tool
Codec Tweak Tool scans your computer for broken codecs and filters and it allows you to remove them.
Preferred Filter Tweaker
Win7DSFilterTweaker helps you configure your preferred DirectShow decoders fast and easy. It is also known as Preferred Filter Tweaker for Windows 7.
MP3 Checker
You don’t have any idea why your MP3 files are corrupt? MP3 Checker will tell you everything you need to know about those MP3 files causing errors.
MP3 Shield
MP3 Shield helps you control your MP3 collection by scanning it rapidly and detecting any corrupt files.