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> **Possible Duplicate:**  
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> [What is the best way to partition, and what is the best file-system for a new Hard Disk?](https://askubuntu.com/questions/16642/what-is-the-best-way-to-partition-and-what-is-the-best-file-system-for-a-new-har) 
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I've got a 2TB external HD on which I save valuable data. so far I'm using NTFS as my file system, but I find it quite slow because I've got lots of files there. (700GB of videos, 20GB of music, etc.)

I want to encrypt some of the files (personal) and not the whole partition, and I would like the partition to run smoothly and not as laggy as now. 

I read about JFS and EXT4 and EXT3 but each of them has got pros and cons. Can someone explain to me which one is the best for my needs?