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LoRd_MuldeR · 15th August 2013, 12:18

"No filename" and "no container" are two totally different things.

The container format is determined by how the file was created, i.e. by the content of the file. The file's name (with or without extension) doesn't matter at all.

For example: If I have an MP4 file "foo.mp4" and I rename this to "foo.avi", it still remains an MP4 file! The same holds true, when I rename it to "foo.bar" or just "foo"

If you have a file and you are not sure which format it is, use a tool like MediaInfo to find out what it is. Then you can rename it to the "correct" file extension.

There can be data that has no container at all. Like "raw" H.264 streams, for example. But as soon as you have audio+video in one file, it necessarily has a container.

15th August 2013, 12:18	#2 \| Link
LoRd_MuldeR Software Developer Join Date: Jun 2005 Location: Last House on Slunk Street Posts: 13,248	"No filename" and "no container" are two totally different things. The container format is determined by how the file was created, i.e. by the content of the file. The file's name (with or without extension) doesn't matter at all. For example: If I have an MP4 file "foo.mp4" and I rename this to "foo.avi", it still remains an MP4 file! The same holds true, when I rename it to "foo.bar" or just "foo" If you have a file and you are not sure which format it is, use a tool like MediaInfo to find out what it is. Then you can rename it to the "correct" file extension. There can be data that has no container at all. Like "raw" H.264 streams, for example. But as soon as you have audio+video in one file, it necessarily has a container. __________________ Go to https://standforukraine.com/ to find legitimate Ukrainian Charities 🇺🇦✊ Last edited by LoRd_MuldeR; 15th August 2013 at 12:38.