Quote -[The directory tree is something like this: My Docs/ened/vids/name of file]End quote
If you can find your own way to a DOS screen with "the C prompt" you should see on the bottom after any other text - C:>
This is a good start!
Type the path of the file with the exact names of the folders just as before BUT in your example you have used switches by typing / forward slash as they say on the Beeb. Use this format instead. A back slash. My Docs\ened\vids\name of file
There are other troubles to contend with like long filenames, always abreviated in DOS when the name exceeds 8 characters.
In fact if you go a long way round unsure of the proper path, you can start at the C: prompt simply type DIR and Enter, to see a list of all folders and files in the root folder.
Now to change "Directories" to say My Docs, type CD My Docs - and Enter. The cursor will now be at the C:\My Docs> position, though I'm not sure about spaces in DOS which might need an underscore instead of a space. Type DIR again and you should see all files and folders in this one.
This could go on and I'm on dodgy ground with a fading memory, but you can see this is logical, precise, but no way fast.