A DAM, or digital asset management system, manages finished assets of every type for a broad audience: logos, images, PDFs, brand kits, and exported videos. Its job is governance, so it cares about versions, rights, approvals, and getting the correct file to the person who needs it. A MAM, or media asset management system, manages video and audio while they are still being worked on. It cares about the things that only matter for media: timecode, proxies, high-resolution originals sitting on slow storage, partial file restores, and handing material to an edit system. The short version is that a DAM is built around the finished file and a MAM is built around the production.
Where the difference actually shows up
File weight. A MAM assumes a single asset can be hundreds of gigabytes and that you should be able to work with a lightweight version while the original stays on cheaper storage. Most DAM systems assume the file is small enough to download.
Time. Video has an interior. A MAM knows what timecode is, can hold subclips and markers, and treats a moment inside a file as a real object. A DAM usually treats a video as one indivisible thing with a thumbnail.
Who uses it. DAM users are often outside the creative team entirely: sales, regional marketing, partners, agencies. MAM users are the production people, and there are fewer of them with much heavier requirements.
Lifecycle stage. DAM lives after approval. MAM lives before it. Teams that need both usually run both, with the export from one becoming the entry to the other.
The distinction matters less than the sales pages suggest
The two categories have been converging for a decade. Plenty of DAM products now handle video properly, and plenty of MAM products have grown distribution and permissions features. If you are choosing between them, the label on the box will not decide it. What decides it is whether your pain sits before delivery or after it.
There is also a capability that sits outside this whole distinction, and confusing it for one of the two categories is the most common mistake here. Neither DAM nor MAM implies that you can find a moment inside a file. Both are systems of record: they know what exists, who owns it, which version is current, and where it lives. That is a different question from what is inside minute 47. Teams discover this the hard way when they set up infrastructure for a long project, expect to search across everything anyone said, and find that the system stops cleanly at the file boundary. Archives with hundreds of talk-based recordings hit the same wall from the other direction, holding good transcripts they still cannot get answers out of.
Retrieval is a separate layer
Once you see that, the shopping question changes. You are choosing a system of record, and separately deciding how questions get answered against it.
Cataloguing gets you filters. Project, date, format, owner, status. Useful, and it assumes someone entered the metadata.
Transcription gets you words. It works well for dialogue and produces nothing for footage where nobody speaks.
Content search over the material gets you moments. This is the layer that sits on top rather than replacing anything: it works against the storage you already have, so the system of record stays whatever you chose it to be. Vivu is one implementation of that layer, and it connects into the tools a team already works in through MCP, which is what keeps the question in the same place as the work instead of in a separate portal nobody opens.
When you need neither
If your team is small, your active projects are few, and the material stays on one shared volume that everyone understands, both categories are overhead. A naming convention plus a folder structure will outperform a half-configured platform, and it costs nothing to maintain beyond the discipline you already need. The point where this stops being true is specific: it is when material outlives the memory of whoever made it, or when the person searching was not on the shoot. Below that line, buying a system usually means buying a metadata obligation you will not keep.
Deciding which one you are shopping for
Look at where things go wrong. If the failures are about the wrong version reaching a client, about rights expiring unnoticed, or about people outside the team not finding approved files, you are shopping for a DAM. If the failures are about moving terabytes, about editors waiting on restores, or about losing track of which drive holds the originals, you are shopping for a MAM. And if the failures are mostly people not finding a thing they know exists, note that this belongs to neither category, and buying either one on that basis is how teams end up with an expensive system that still cannot answer the question they bought it for.