saving dired buffers

[Mathias Dahl]

I have a dired buffer created when running find-dired. To
find all files took a very long time and the content will
not change (the files are read only and changes only once
per year). Is it possible to save this buffer so that I
don't need to make the search again the next time I want to
perform operations (moslty searching) in the large
collection of files?

/Mathias