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floppy disk

 
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Hathorlive
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Joined: Jan 12, 2007
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PostPosted: Fri Feb 06, 2009 4:34 am    Post subject: floppy disk Reply with quote

Just for edification, has anyone here ever been told that access times are changed when you look at a write protected floppy?

I've never seen this happen (we use a write blocker at work and I haven't done much testing on floppies lately) but we had someone tell us yesterday that you can write to a write protected floppy. I've done some limited testing but none of my lab equipment has had an issue.

Thoughts?
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PreferredUser
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PostPosted: Fri Feb 06, 2009 5:02 am    Post subject: Reply with quote

I suppose if the write protect pin does not accurately align there could be an issue. We use USB floppy drives via USB write protect.
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vic20
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PostPosted: Fri Feb 06, 2009 8:11 am    Post subject: Reply with quote

This should only happen if there is a problem with the floppy drive itself (i.e. misaligned light, as PreferredUser specified). I've seen hardware write blockers fail, be it a floppy drive, a Tableau UltraBlock bridge, or a FastBlock. That's why it is important to test your write blockers regularly. Then again you should regularly re-verify all the tools you use.

If the write blocker is working, you should never run into a case where access times are changed on a floppy, hard drive, or any other digital media.

As a side note, I've never run into a problem with the Linux Live Distribution geared for software-based write blocking (i.e. SMART Linux and Helix). Good luck in your research.

Thomas G. Taylor
Forensic Scientist - Computers
National Forensics Lab
U.S. Fish & Wildlife Service
Ashland, OR
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