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This review is from: Crucial M4 2.5" 512GB SATA III MLC Internal Solid State Drive (SSD) CT512M4SSD2
Pros: Fast! and inexpensive for this size storage. ($400 vs $570-ish.)
Cons: File blocks go bad randomly.
You won't know which files are bad until you try to access the file and then either the program gets stuck, crashes, or Windows throws an error message.
Other Thoughts: Problems first detected after about 3 months. (First one didn't even last a month before corrupting a Windows file and I couldn't boot.)
Files that worked last week are suddenly damaged this week.
Usually, an MMO game gets stuck trying to patch a file. Today, it was the .exe for Crystal Reports that I use all the time for work.
I figure out which file it is by trying to copy suspected files/folders and get an error.
Error is usually: "The request could not be performed because of an I/O device error. (1117)"
Or sometimes "semaphore timed out".
I can delete the file and copy back a backup copy and it's fine ... until the next random file is corrupt.
This is even after applying their latest firmware (000F; 2012-04-11).
So now I HAVE to do at least weekly backups by copying all the files to an external and seeing which ones are corrupt.
To test the first SSD: I formatted it, copied 500GB worth of data to it, and copied it back to an external drive. Everything was OK.
Pros: compact, wireless, built-in touchpad
Cons: completely unreliable. after typing just a few characters and generates teXT THAt loOKS likE thIS.
The SHIFT-key get stuck. Sometimes it undoes itself. Other times, you have to press the SHIFT-key on the laptop to reset the SHIFT state; but then it gets stuck again when using this bluetooth keyboard.
Other Thoughts: pretty pathetic for such an expensive device and it doesn't even workREAD FULL REVIEW