Can the Document and Extended properties used by Directory Opus be used by other programs or OS?

Help & Support
1

For example, JPEG or MP4 extensions both Directory Opus and Windows Explorer support Document and Extended Properties, so even if i edit or write in one of the two Explorer, i can handle the two properties ​​well and view them again without conflict.

However, I found out that the two Properties of a number of file extensions are supported only in Directory Opus and not in Windows Explorer. And then I wondered if the two Properties of the numerous file extensions written in Directory Opus were compatible with other Explorers and other OS without any problems.

In other words, are the two properties of the numerous file extensions created in Directory Opus conforming to the standard or compatible so that they can be handled correctly in other Explorers or other OS? I wonder if it is not compatible with the program or other OS.

Two properties = Document and extended properties

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2

Yes.

3

Comment, Rating and Tags may be written into NTFS ADS metadata which other programs don't understand. It depends on the file type, and whether it has a better way to store the same information (and whether Opus knows about it, of course).

5

Thanks for the answer. However, after searching for more information, I think Extended is not completely compatible.

6

Thank you for answer. But I have more questions.

I did an experiment to move the file with the contents written to the Document to a storage medium other than NTFS, and as a result, the attribute value seems to be well maintained.

However, unlike Opus, PNG and some file extensions were unable to check or modify the document in Windows Explorer.

So I asked a question because I wondered whether the Document property is compatible with other file systems, operating systems, and other explorers.

In the Opus description, unlike Extended, there was no saying that Documents were stored in ADS or the like.
But I am not sure, so I ask.

7

An easy way to tell if the data is stored in the file or in a separate ADS stream is to make a copy of the original file, change the data, then compare the old and new file contents (or CRCs/MD5s etc.). If the contents changed, the data must be stored in the file itself.

Whether File Explorer will show the same data, I couldn't tell you. But something like Photoshop or ExifTool should, if it's stored inside the PNG.

8

Thanks for the answer. I experimented, and some extensions, such as PNG, saved Extended as the file itself, not ADS. It was helpful.