- REPLACEMENT FOR 7ZIP FOR MAC ARCHIVE
- REPLACEMENT FOR 7ZIP FOR MAC WINDOWS 7
- REPLACEMENT FOR 7ZIP FOR MAC ZIP
Nevertheless, when I hashed the Word file I extracted from the 7zip, its MD5 hash value was 5265ec41f8b30790181a6fd77f094ab3, a “perfect” match to the source evidence, accompanied by an unchanged last modified date. The temporal metadata wasn’t ‘changed’ so much as populated with the only temporal information handed off in the transfer–a distinction without a difference to most users. The operating system populated all the MAC values with the last modified data because, by default, 7zip doesn’t carry forward any temporal data except for the last modified date. The last modified date was unchanged, but the creation data properly reflected the fact that I’d “created” a copy in a new location. I went to where I landed the data and checked the MAC dates.
REPLACEMENT FOR 7ZIP FOR MAC ARCHIVE
Next, I added the Word file to a 7zip archive and closed 7zip.įinally, I navigated to the 7zip archive I’d created, opened it in 7zip and extracted the Word file to a new location on my drive. It would change here in any event, even though the file wasn’t opened.
REPLACEMENT FOR 7ZIP FOR MAC WINDOWS 7
I ignored the last access date because it’s an inherently unreliable metavalue after Windows 7 stopped routinely updating it.
Prompted by your question, I took a Word document with a last modified date of Wednesday, December 16, 2015, 12:59:56 PM and a created date of Wednesday, December 16, 2015, 1:00:17 PM and hashed it using an online hash tool to get a baseline MD5 hash: 5265ec41f8b30790181a6fd77f094ab3. There is a simple way for you to assess that: check the MAC (modified/accessed/created) dates and hash the files in and out! You did some exercises of this nature in my Georgetown Academy workbook. I think the more important concern is whether the tools and methods you employ reconstruct the metadata that matters and preserve the integrity of the evidence files. If you want to use such tools, they are out there. Thus, the metadata changes, then changes back to undo the change. Some e-discovery collection tools change the values back to the originating values as part of the collection process. Anytime you copy data to new media, Windows changes some of its metadata. Metadata is always changed in the copying of files within a Windows environment. Can you clear this up for me? Am I changing metadata just by zipping a file? If I am, are there other simple tools that I can use? One of our consultants is now telling me that I’m changing metadata. The filenames are too long for Microsoft to be happy with them in their original state.
REPLACEMENT FOR 7ZIP FOR MAC ZIP
We’ve always used 7zip to zip our collections. My student wrote: I have a question in regard to zipping eDiscovery data. I’m posting it here in hopes my response may be useful to you. Checking the mailbag, I received a great question from a recent Georgetown E-Discovery Training Academy attendee.
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