I have to question the motive of your post when you take the time to write a review and post it, but you don't take the time to read the manual of your purchase.
I like Creative's players, and I think their software is more than adequate. You shouldn't have to use Windows Media player if you use the Creative Mediasource Organizer. Creative's own software allows you to easily drag and drop files, is ad free, and is not as intrusive (services always running in the background) or DRM laden as iTunes.
If you don't like the Creative software, there are alternatives. The best one I have found is made by Red Chair Software and is called NotMad explorer. This software streamlines a lot of the controls and also adds a streaming feature where you can listen to your mp3s from other computers on your network.
So I bought a Zen Vision:M player last week because I am looking to replace my 3 year old iPod-mini and I had read rave reviews about the M. The player itself is very nice, although the controls interface is not as sleek as an iPod's. The video quality was great and sound quality too...but WHY did creative have to include such a crappy software program for uploading media?
First off I loaded some songs to test it out and then saw that I could just sync it with WMP and I did that to save some time, but WMP didn't over-write the songs/videos that I had manually placed there, it just put copies of each file. So that was a pain in the butt to fix that.
After using iTunes for 3 years I guess i got spoiled with the drag and drop technique because uploading music into the M took at least twice as long.
I am going to return it and get either a new 30 GB iPod or a new green Nano. The M may have better video quality and comparable sound quality as an iPod, but whoever came up with that software interfacing program should be fired.