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TICKET ARCHIVE -> Retrieving Deleted/overwritten Data
OS Xover - Jun 28, 2005 - 2:13 am
Hello-
Is there any possible way to retrieve deleted or overwritten data?
Here is the scenario:
-My wife is running OS.X 10.3.7 on a G4 12" Powerbook.
-She captures some video on FCP4 via firewire and saves it to the internal hard drive.
-Once she captures the project, she transferred the captured project to an external 60 GB Que! Drive
-After verifying that the data has copied over, she then deletes the captured files on the hard drive and empties the Trash Bin.
-Once emptied, she captures more video on FCP4 via firewire onto the internal hard drive.
-After capturing the footage that she wants, she transfers the captured project onto the external drive.
-Now here's where it happens: She accidentally saves over the 1st captured project with the second captured project on the external drive.
So right now, we have a captured file with the same name on the external hard drive and no copies of files on the internal hard drive.
We haven't turned off the computer yet (I've heard that there are possibilities of saving data as long as the computer is still on)
Any help that you can give us will be very very appreciated!!!
Is there any possible way to retrieve deleted or overwritten data?
Here is the scenario:
-My wife is running OS.X 10.3.7 on a G4 12" Powerbook.
-She captures some video on FCP4 via firewire and saves it to the internal hard drive.
-Once she captures the project, she transferred the captured project to an external 60 GB Que! Drive
-After verifying that the data has copied over, she then deletes the captured files on the hard drive and empties the Trash Bin.
-Once emptied, she captures more video on FCP4 via firewire onto the internal hard drive.
-After capturing the footage that she wants, she transfers the captured project onto the external drive.
-Now here's where it happens: She accidentally saves over the 1st captured project with the second captured project on the external drive.
So right now, we have a captured file with the same name on the external hard drive and no copies of files on the internal hard drive.
We haven't turned off the computer yet (I've heard that there are possibilities of saving data as long as the computer is still on)
Any help that you can give us will be very very appreciated!!!
skapp - Jun 28, 2005 - 2:45 am
If you directly overwrite file A with File B such that File B has the same filename as File A, then File A (the overwritten file) is lost forever.
Overwriting an existing file means that the new file is placed in the same physical location as the old file. The new file replaces the old file so it is impossible to recover the old file.
If you accidentally delete a file the physical space occupied by the file is still in place. Only the directory entry is affected when a file is deleted. The directory will simply reflect that the space once used by the file is now available for re-use. If nothing is physically written to the disk after the deletion, then it's possible to recover the deleted file. However, if data continues to be written to the drive, then eventually the space where the file resided will be overwritten by new data. Recovery is dependent upon preventing any further writing to the drive from occuring until the deleted file is recovered. If you delete data from a startup volume, the liklihood of recovery is low because the operating system is frequently writing data to the drive. However, if the deletion is on another drive, then you can stop writing data to that drive, and then get recovery software to attempt to recover the deleted file.
Overwriting an existing file means that the new file is placed in the same physical location as the old file. The new file replaces the old file so it is impossible to recover the old file.
If you accidentally delete a file the physical space occupied by the file is still in place. Only the directory entry is affected when a file is deleted. The directory will simply reflect that the space once used by the file is now available for re-use. If nothing is physically written to the disk after the deletion, then it's possible to recover the deleted file. However, if data continues to be written to the drive, then eventually the space where the file resided will be overwritten by new data. Recovery is dependent upon preventing any further writing to the drive from occuring until the deleted file is recovered. If you delete data from a startup volume, the liklihood of recovery is low because the operating system is frequently writing data to the drive. However, if the deletion is on another drive, then you can stop writing data to that drive, and then get recovery software to attempt to recover the deleted file.
OS Xover - Jun 28, 2005 - 6:46 am
Thank you so much Steven. Looks like the external hard drive is out of the question. Do you think there is a chance to get it out of the trash bin? After she copied it to the external hard drive. she put it in the trash bin and emptied it.
skapp - Jun 28, 2005 - 1:24 pm
No chance of recovery once the Trash is emptied. You can only recover the file from the Trash if the Trash has not been emptied.
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