MP3Resizer 

MP3Resizer is designed to optimize the capacity of your portable MP3-player by reducing the size of MP3 files.
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FlashShare Flash Optimizer 

FlashShare Flash Optimizer is a powerful Flash Optimization tool to reduce your SWF files size up to 70% without losing flash quality, so you can make your web page load faster, save your server bandwidth charges and disk space.
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NXPowerLite 

NXPowerLite can reduce the size of your PowerPoint files by over 90%. It's fully customizable, allowing you to choose the ideal balance between compression and quality. This free, fully functional trial version will compress up to 10 presentations.
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