: This is the sequence number, indicating it is the 17th file in a recorded series.
Are you trying to of this specific video file or determine printing settings for it? 11x17 paper and all you need to know about it JDXYX-017.mp4
: 297 x 420 mm, the international equivalent roughly matching the 11x17 size. : This is the sequence number, indicating it
If you are looking to print or reference this file in a document, common "paper" sizes for large-format printing (often used for posters or technical layouts) include: : This is the sequence number