Hi all,
I have recently lost a big part of a movie file because the Mac's Image Capture app contains a terrible footgun: if a file is larger than 4 GB, it will only import the first 4 GB, truncating the file. Therefore I have the first 4 GB but I'd like to recover the rest (I estimate the original was around 10 GB). I tried running photorec on the card I have, but it only found a few other MOVs, the largest being ~250 MB. Is there a way to tell it I want to look for something very specific?
Recovering a large (>4GB) MOV
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When asking for technical support:
- Search for posts on the same topic before posting a new question.
- Give clear, specific information in the title of your post.
- Include as many details as you can, MOST POSTS WILL GET ONLY ONE OR TWO ANSWERS.
- Post a follow up with a "Thank you" or "This worked!"
- When you learn something, use that knowledge to HELP ANOTHER USER LATER.
Before posting, please read https://www.cgsecurity.org/testdisk.pdf
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recuperation
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Re: Recovering a large (>4GB) MOV
What is "something very specific"?
Re: Recovering a large (>4GB) MOV
I mean, I have the first 4GB, so I'm interested in any data that might follow. I can imagine using the last kilobyte from that 4GB as a search pattern to find the place where the remaining part begins... I realize that assuming that such a big file wouldn't be broken to parts in the filesystem is somewhat naive, but as I empty the card before each new session, I assume the fragmentation to be nearly zero.
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recuperation
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Re: Recovering a large (>4GB) MOV
You can uncheck all other file formats.
Photorec creates a new file once it finds a new fingerprint.
This way your mov file has the chance of growing larger.
You can try to build a fingerprint based on your proposal and use it with Photorec.
Photorec creates a new file once it finds a new fingerprint.
This way your mov file has the chance of growing larger.
You can try to build a fingerprint based on your proposal and use it with Photorec.
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cgrenier
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Re: Recovering a large (>4GB) MOV
Do you have an unmodified over 4GB mov file from your camera ?
Please run in a terminal "./fidentify -check /path/*.mov" ? (replace path by the full pathname). Is the filesize correct ?
Please run in a terminal "./fidentify -check /path/*.mov" ? (replace path by the full pathname). Is the filesize correct ?