I only ever remember one or two dreams...BUT...

I remember them in the kind of visual depth and detail where when I wake up, I have to mentally recover from them and it takes a few minutes to convince myself they weren't real.

Also, my dreams can span a dream-time period of several days, which throws me off a bit when I wake up...

Do I need to try to remember more than about two dreams if they are so detailed?

EDIT: Also, I don't remember sound at all in a dream, just visual and emotive. On a less related note, I often wonder whether there is any sound in my dream at all?

Well, even thoug you only can remember visuals, write them down..

It isn't making anything worse..

After some time, you'll might hear something..

Good luck :)

Also, certain lucidity techniques work better for some people rather than everyone....

Its just a matter of being able to distinctly determine the conscious world from the other..