Editor’s note: Besides tracking technological advancements and innovations, our author is a Juilliard-trained musical composer. Listen to “Turkey Wobble Pizz,” an original improvisation by Howard Lieberman, composed for this column.
Why metadata feels so inconsistent
Today I want to go further into the subject of metadata that I introduced in last week’s column.
It’s not hard to find metadata on your own computer, If you have a Mac, highlight a file in your Finder, click on the File menu, and then click on Get Info. The box that opens will be full of meta-data such as file name, when it was created, when it was opened, what is the default app to open that file with, and more. In Windows on a PC, you right-click on a file, select Properties at the bottom of the menu, and a window will open showing file size, creation/modification dates, file type, location, security/permissions, sharing info, and previous versions (if enabled).
Most people assume metadata is simple. They imagine that every file carries a clean, self-explanatory label to tell apps exactly what the file is, when it was created, and how it should be handled. They expect that every app reads the same information and shows it consistently. These assumptions feel reasonable, but they seldom hold up in practice. Metadata is not a universal standard. It is a collection of overlapping systems that coexist somewhat awkwardly across formats, operating systems, and applications.
A helpful way to understand this is to step back and look at what metadata actually is. The clearest explanation comes from the metadata overview, which frames it as information about information. That definition sounds straightforward, yet every file type, every application, and every platform interprets it differently. A photo may contain EXIF data recorded by the camera, IPTC fields added by an editor, and XMP fields created later by another tool. Audio files may include ID3 tags, format-specific metadata, and application notes. None of these structures replaces the others. They simply accumulate and overlap.
Once you see metadata as a set of parallel structures, the contradictions begin to make sense. Finder may disagree with an audio editor because each one is pulling information from a different drawer. Spotlight can show outdated values because it keeps its own index outside the file and updates only when it decides to. What appears to be an inconsistency is simply the ecosystem expressing its internal complexity.
A hands-on test across Mac apps
I confirmed all of this firsthand when I opened the same audio file in three of the apps I use every week. Piezo captures my recordings. Fission edits them. Swinsian manages my library. Each app presented slightly different metadata. Some fields lined up, others did not, and a few appeared in only one place. The Finder added yet another perspective through its Info panel, which often displayed Spotlight’s cached metadata rather than the details I had just edited.
Nothing was broken. Each tool was simply reading from a different part of the metadata structure. One app reads embedded tags directly from the file. Another relied on its own internal library record. Spotlight maintained an external version. Once I understood these layers, the inconsistencies stopped being surprising. I began predicting which app would display which values and why some file types behaved differently from others.
This is also why serious metadata editing is best done on a Mac rather than a phone. Phones excel at capturing media, but they are not designed to expose or manage the more intricate structures inside those files. When you want to bring order to the invisible layers beneath your creative work, you want tools that reveal what is actually going on. And when the whole process starts to feel overwhelming, it helps to remember that confusion is universal. Even programmers laugh about the struggle of sorting out contradictory information, as shown in the collection of debugging memes that somehow makes metadata feel more human.
A simple toolkit that actually works
The encouraging part is that metadata can become coherent once you use the right tools. After trying several options, I settled on two Mac-friendly applications that handle almost everything most people encounter. For audio and video, Mp3tag has become my preferred choice. It opens and edits metadata across MP3, WAV, AIFF, AAC, FLAC, M4A, MP4, and M4V with a consistent interface that makes the hidden structure visible. The Mac version, described at mp3tag.app, brings clarity to a part of the system that often behaves like a funhouse mirror. Once you correct metadata there, other apps tend to follow its lead, and the contradictions that once seemed unpredictable begin to fade.
For images and illustrations, MetaImage allows you to work directly with EXIF, IPTC, and XMP metadata. It helps you correct timestamps, add copyright information, assign keywords, and manage the quiet details that make visual archives easier to search and reuse. Between these two applications, one focused on audio and video and the other on photos and graphics, you gain practical control over the metadata that most creative work depends on.
Once these layers are aligned, Finder becomes more predictable, Spotlight becomes more useful, and your files begin to behave in ways that feel coherent. The sense of wrestling with the machine disappears. What remains is a quiet confidence that the structure beneath your creative life now supports you instead of hindering you. Metadata stops feeling like an obstacle and becomes an ally, an invisible foundation that helps keep your work organized, discoverable, and usable long after the moment of creation has passed.
Metadata as influence, not merely as information
Metadata is not only a privacy and security risk. It also underpins the systems that shape what we see online. Much of the targeted advertising people encounter is based on patterns inferred from metadata rather than from the content itself. The time of day you browse, the device you use, the location you visit most often, the speed of your network connection, the kinds of files you upload, and even the rhythm of your interactions can all serve as signals that help algorithms predict what will capture your attention.
This is not always sinister. Sometimes it results in more relevant recommendations or quicker access to what we need. But it also means that metadata contributes to the same engagement loops that can narrow perspectives, reinforce existing preferences, and quietly influence what people believe. A clear explanation of how this process works can be found in this discussion of behavioral targeting, which shows how metadata-driven insights power much of the modern advertising ecosystem. The result is a subtle but persistent pressure on our attention. Our experience of the digital world becomes shaped not only by the choices we make but also by what our metadata suggests we might want.
Understanding this does not require rejecting technology or avoiding digital tools. It simply requires a bit of intentionality. We can decide which services we trust, which devices we rely on, and how much information we want to reveal. Awareness gives us agency. Without it, we are shaped by systems we do not fully see. With it, we can navigate the digital world with clarity instead of confusion.
Metadata is powerful, but power is not the same thing as danger. It is simply a kind of visibility that operates below the surface. When we know what that visibility entails, we can choose how much of ourselves we want to share.
